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#4 Nylon Insert Lock Nuts
Nylon-Insert Lock Nuts, Nyloc Nuts or Elastic Stop Nuts, are locknuts with a nylon or fiber internal collar that increases friction on the screw thread. The screw thread does not cut into the nylon insert, however, the insert deforms elastically over the threads. Since the locking feature can be affected by heat, they are more correctly referred to as “Stop” nuts.
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| Search Results Sponsored by J. Lanfranco Fastener Systems, your source for Nylon Insert Lock Nuts. For more results, visit jlanfranco.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Buy Nylon Insert Lock Nuts from one of our FCH Network Members | ||||||||
| Jackson | MS | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nc nylon locknut 18-8 ss | 283 |
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| ACCURATE | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nm nylon insert hex locknut | 269 |
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| RCFast | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert locknut 18-8 304 ms21044c04 | 500 |
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| Jay-Cee | MI | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nm nylon insert hex lock nut zinc | 7400 |
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| SII | IN | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 zinc nylon insert nut) | 1050 |
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| CNB | IL | Lock Nut, Nylon Insert | Superalloy (Inconel, Hastelloy, Alloy 20) | Plain | #4-40 | nylon insert lock nut hastelloy c276 per print 406208-2 | 15 |
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| Ababa | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n nm s/s b18.2.2 | 2050 |
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| Ababa | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n nm s/s b18.2.2 | 800 |
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| Ababa | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 thin nylon insert l/n (ntm) s/s b18.2.2 | 600 |
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| Ababa | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 thin nylon insert l/n (ntm) s/s b18.2.2 | 300 |
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| American | NY | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | low profile nylon insert stop nut 18-8 304 head ht .094-.124 | 3000 |
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| Lubker Di | PA | Lock Nut, Nylon Insert | Steel | Zinc/Black | #4-40 | #4-40 hex m/s nyl ins l/n (nm series) zinc black | 1950 |
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| Lubker Di | PA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | #4-40 hex m/s jam nyl ins l/n zp (ntm series) | 14890 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 4/40 nylon insert stop nut | 2000 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 4/40 nylon insert stop nut | 2000 |
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| Weaver | WA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylock nut zinc | 1960 |
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| Weaver | WA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4/40 nylon jam nut 18-8 ss | 492 |
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| JET FITTING | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 hex nylon insert lock nut stainless steel 18-8 nm b18.2.2 | 5000 |
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| JET FITTING | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nut lock 440 stainless steel nylins thin ntm b18.2.2 | 221 |
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| JET FITTING | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 hex nylon insert lock nut thin steel zinc ntm b18.2.2 | 10890 |
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| JHP Fasteners | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4-40 x 1/4 x 5/32 | nut self-locking hexagon-regular 250 deg. f and 450 deg. f (non-metallic insert) 300 series corrosion resistant steel 304ss MS17830-04C | 5 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Zinc/Yellow | #4-40 | nylon insert stop nut zy | 1000 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nylon insert stop nut | 5863 |
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| RCFast | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert locknut 18-8 304 | 3500 |
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| RCFast | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert locknut stl cr+3 | 1150 |
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| QFC | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylon insert l/n trivalent clear b18.2.2 | 6500 |
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| QFC | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n 18-8 s/s b18.2.2 | 1089 |
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| QFC | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 hex machine nylon insert nut 18-8 b18.2.2 | 1172 |
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| QFC | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 hex machine nylon insert nut 18-8 b18.2.2 | 111 |
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| QFC | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 hex machine nylon insert nut 18-8 b18.2.2 | 1800 |
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| QFC | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 hex m/s nylon insert nut zinc b18.2.2 | 5885 |
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| QFC | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 hex m/s nylon insert nut zinc b18.2.2 | 900 |
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| METRO IND | OH | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | m/s elastic stop nut uss | 880 |
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| METRO IND | OH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | m/s elastic stop nut USS s/s | 1178 |
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| TSF | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | self locking nut plate | 800 |
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| TSF | TX | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut nylon 440 | 700 |
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| TSF | TX | Lock Nut, Nylon Insert | Steel | Black Oxide | #4-40 | hex nut nylon black 440 | 1200 |
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| TSF | TX | Lock Nut, Nylon Insert | Steel | Black Oxide | #4-40 | nylon insert locknut blk oxide 4-40 | 2654 |
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| TSF | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert locknut ss 440 import | 310 |
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| TSF | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert lock nut ss-316 4-40 | 2600 |
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| YANKEE | NH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | thin nylon-insert lock nut 18-8 s/s | 3597 |
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| YANKEE | NH | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert lock nut | 5953 |
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| YANKEE | NH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert lock nut 18-8 s/s | 4835 |
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| Hayes | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | ms21044c4 1/4-28 n.i. locknut s/s pass | 50 |
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| ACCURATE | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert locknut 18-8 s/s | 612 |
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| Marine Fasteners | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n ss b18.2.2 | 877878 |
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| Hewes | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 1/4-28 slf locking nut 18-8stainless MS21044-C4 | 46 |
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| Hewes | NY | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | elastic stop nut pl | 2410 |
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| Hewes | NY | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | mini elastic stop nut18-8 s/s #79-1660-40 | 800 |
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| Hewes | NY | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | fin elastic nut18-8 s/s | 1295 |
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| Empire | WA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n ss | 2767 |
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| Alma Bolt | MI | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | #4-40 st. st. nylon insert lock nut b18.2.2 | 603 |
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| MESAFAST | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 400.0 |
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| MESAFAST | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert lock nut 18-8 s/s | 20.0 |
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| MESAFAST | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert lock nut | 3,250.0 |
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| MESAFAST | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | thin pattrn nylon insert hex nut zc | 3,000.0 |
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| Cal Fastenrs | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | hex nylon insert l/n low profile Cr3+ | 450 |
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| ACF | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 s/s ( nm ) nylon insert locknut | 6390 |
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| ACF | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 ( ntm ) s/s thin height nylon insert locknut | 2570 |
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| ACF | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 ( ntm ) thin height nylon insert locknut z/p rohs compliant | 385 |
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| MTP | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | # 4-40 st/zn nylon insert locknuts | stock |
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| Purchase | MO | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylon insert l/n stl zn | 8000 |
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| Wurth Ada | MN | Lock Nut, Nylon Insert | Grade A | Zinc/Clear | #4-40 | nut hex nyl/insert nm grade a (zt) 4-40 | 2,000 |
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| Irwin Ind | Ont | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/nuts stainless steel b18.2.2 | 1656 |
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| Irwin Ind | Ont | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 unc steel nylon insert locknuts zinc trivalent clear b18.2.2 | 1000 |
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| Irwin Ind | Ont | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert jam nut stainless steel b18.2.2 | 2000 |
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| GLF | OH | Lock Nut, Nylon Insert | Aluminum | Plain | #4-40 | 4-40 (1/4x5/32) alum hex/nylon-insert locknu MS21044-D04 b18.2.2 () () () | 279 |
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| GLF | OH | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 1/4-28 (7/16x1/4) ss hex/nylon-insert locknu MS21044-C4 b18.2.2 () () () | 78 |
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| GLF | OH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 (1/4x3/32) ss hex/nylon-insert locknut 304ss MS21044-C04 b18.2.2 () () () | 70 |
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| GLF | OH | Lock Nut, Nylon Insert | Aluminum | Anodized | #4-40 | locknut MS21083D04 b18.2.2 () () () | 130 |
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| GLF | OH | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | #4-40 fin hex nyl ins lock nut stl zc b18.2.2 () () () | 11837 |
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| GLF | OH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | #4-40 fin hex nyl ins lock nut 18-8 s/s b18.2.2 () () () | 2021 |
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| SIS | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 x 1/4 | 4-40x1/4 widthx7/64 ht nylon insert thin hex locknuts steel zinc | 350 |
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| CIF | IL | Lock Nut, Nylon Insert | Steel | Zinc/Yellow | #4-40 | #4-40 nylon insert locknut steel per a-31 part ii zinc per g-20 6a (4244) (4244) (4123) () | 4123 |
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| SIS | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert locknut 18-8 304 steel nm | 6000 |
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| SIS | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylon insert lock nut steel zinc per print | 3980 |
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| Century | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | ms21044c04 nut slflkg hex(reg hgt) 0.112-40 cres psvt (NUTSLFLKGHEX(REG HGT) 0.112-40CRESPSVT) (NUT SLFLKG HEX(REG HGT) 0.112-40 CRES PSVT) | 2500 |
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| Century | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert locknut 18-8 esna 79nm-40 4-40 nylon insert locknut 18-8 (ESNA 79NM-40 4-40 NYLON INSERT LOCKNUT 18-8) (ESNA 79NM-40 4-40 NYLON INSERT LOCKNUT 18-8) | 21156 |
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| Century | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert lock nut 18-8 s/s steel + lub wax (18-8 STAINLESS STEEL + LUB WAX) (18-8 STAINLESS STEEL + LUB WAX) | 5000 |
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| Century | FL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | esna 21nm-40 4-40 nylon insert locknut zinc (4-40 NYLON INSERT LOCKNUT ZINC) (4-40 NYLON INSERT LOCKNUT ZINC) | 80043 |
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| Lightning | LA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert lock nut | 500 |
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| Century | FL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | ms21083n04 () | 6 |
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| Century | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/4 x 5/32 | ms17830-04c | 154 |
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| Century | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | ms21083c04 | 38 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nylon insert clinch nut brass | 300 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Nickel | #4-40 | nyl insert l/n brass pl | 1400 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 400 |
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| American | NY | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | e-z nyl insert clinch nut 18-8 304 | 250 |
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| THRDFAST | FL | Lock Nut, Nylon Insert | 316, 317, A4 Stainless | Plain | #4-40 | t-316 ss nylon ins m/s lock nut b18.2.2 | 28 |
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| NAPPCO | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | #4-40 hex miniature l/n nylon insert s/s (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) (548-ESNA (LOCKNUTS)) | 86 |
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| NAPPCO | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert locknut steel zp #4-40 | 4630 |
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| BAYFASTCO | FL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert lock nut | 3070 |
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| OBRIEN | OH | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 3900 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4/40 nylon insert locknut zp | 7920 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 100 |
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| THRDFAST | FL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 18-8 ss nylon ins m/s lock nut b18.2.2 | 451 |
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| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 4/40 nylon locknut | 3960 |
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| American | NY | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4/40 elastic stop nut stainless (.148 overall height x 1/4 af) | 1900 |
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| Aztech | IL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nyl ins l/n (wht | 714,000 |
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| Aztech | IL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nylon insert | 889,095 |
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| Aztech | IL | Lock Nut, Nylon Insert | Steel | Galvanized | #4-40 | nyl ins l/n (nm) g | 34,000 |
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| Aztech | IL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nyl ins l/n (nm) | 32,228 |
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| Aztech | IL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nyl ins l/n (wht ring | 4,800 |
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| UNEEDA | NJ | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nylon insert l/n | 4000 |
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| IRF | NJ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert lock nut 18-8 s/s steel | 10,000 |
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| Liberty | IL | Lock Nut, Nylon Insert | Steel | Zinc/Black | #4-40 | ne nylon insert lock nut black | 1,293 |
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| Mansco | MI | Lock Nut, Nylon Insert | Steel | Zinc/Black | #4-40 | hex m/s nylon insert locknut nm pattern triv blk znc 100/box | 3960 |
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| Endries | WI | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n nm 18-8/a2 | 150 |
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| Endries | WI | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nm series machine nylon insert locknut hex chromium free 96 hr salt spray zinc | 5800 |
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| Endries | WI | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 ntm series jam machine nylon insert locknut zinc | 6000 |
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| NutsBolts | NE | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylock zp | 1090 |
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| NutsBolts | NE | Lock Nut, Nylon Insert | 316, 317, A4 Stainless | Plain | #4-40 | 4-40 ss nylock nut 316ss |
| |
| NutsBolts | NE | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 ss nylock nut 304ss | 671 |
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| Cal Fastenrs | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | nylon lock nut micro # 0700440ln 4CNNEN | 800 |
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| Cal Fastenrs | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | hex nylok nut 18-8 304 nylon ins l/n 4CNNE3 | 6,300 |
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| Cal Fastenrs | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | hex nylok nut Cr3+ nylon insert lock nut- rohs compliant 4CNNEZ/CR3 | 540 |
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| BHAM | AL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | thin nylon ins. l/n 300 ser ss | 400 |
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| Future Fastener | TX | Lock Nut, Nylon Insert | Aluminum | Plain | #4-40 | 4-40 miniature nylon insert l/n alum/alo | 1000 |
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| Future Fastener | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert locknut ss | 47 |
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| Future Fastener | TX | Lock Nut, Nylon Insert | 316, 317, A4 Stainless | Plain | #4-40 | 4-40 nylon insert l/n 316 ss | 1006 |
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| Future Fastener | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 miniature nylon insert l/n ss | 300 |
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| Jackson | MS | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nc insert locknut ne | 1915 |
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| Global | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert locknut ii | 11,400 |
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| Global | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | thin nylon ins l/n 18-8 ss | 10,051 |
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| Global | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert locknut | 7,846 |
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| Global | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | thin nylon ins l/n i | 6,662 |
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| Global | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert locknut 18-8 ss | 3,905 |
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| Lippin | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert locknut stainless 18-8 | 650 |
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| Lippin | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert locknut zinc plated | 300 |
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| Delta | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | fin nylon l/n steel zinc 4/40 | 11262 |
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| Delta | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | hx m/s nylon l/n zinc 4-40 | 10825 |
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| Delta | TX | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | hx m/s nylon l/n 18-8 sst 4-40 | 476 |
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| Delta | TX | Lock Nut, Nylon Insert | 316, 317, A4 Stainless | Plain | #4-40 | hx m/s nylon l/n 316 sst 4-40 | 211 |
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| Delta | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | hx jam m/s nylon l/n zinc 4-40 (22NTM-40) | 900 |
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| SJS Prod | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 x 1 1/4 | 4-40 x 1 1/4 f/h phil st zp rohs w/nylok | 500 |
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| SJS Prod | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 x 1/4 | 4-40 x 1/4 flat/hd phil zp w/nylock |
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| SJS Prod | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hexnut nylon 4-40 rohs |
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| SJS Prod | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nylon insert l/n thin pattern zp rohs | 3031 |
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| SJS Prod | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 x 1/4 | 4-40 x 1/4 p/h phil ext sem w/nylok | 1700 |
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| SJS Prod | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40stopnut ss nylon insert tumble rohs |
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| Trifast | TX | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 flange nylon insert nut steel rohs zinc clear | 1000 |
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| SWACO | OH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nut lock 440 stainless steel nylins dfar certs required | 53 |
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| SRF | AL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert l/n | 1,596 |
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| General F | MI | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 4-40 self threading ln nyl b18.2.2 | 2,000 |
|
| ISSCO | MO | Lock Nut, Nylon Insert | Steel | Plain | 4-40 | insert locknut esna aluminum #lc79-nc2-440 | 5300 |
|
| FMP | MA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | esna (maclean esna) esna 4-40 miniature flush mount nut 79NCFMA1-40 | 1600 |
|
| Parker | AZ | Lock Nut, Nylon Insert | Superalloy (Inconel, Hastelloy, Alloy 20) | Passivated | #4-40 x 3/8 | 4-40x.375 low head .375 thread a286 hardened per ams 5737 dfars compiant passivate per dwg 202444 rev- 2024404-115 w/nylok patch made in u.s.a. | 2435 |
|
| AIH | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert l/n s/s | 19596 |
|
| AIH | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert l/n | 263 |
|
| AIH | AZ | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 1/4-28 hex nut self-locking s/s MS21044C4 | 65 |
|
| AIH | AZ | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut self locking MS21083N04 | 25507 |
|
| AIH | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | hex nut self locking s/s 304ss MS21083C04 | 4831 |
|
| SASCO | OR | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert l/n 18-8 sst nylon l/n s nylon l/n s | 900 |
|
| Global | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | 79nkcfm2-40 esna self-locking nut 4-40 | 5 |
|
| ASMC | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | coarse nyloc nut ntm (thin) ss316 | 751 |
|
| ASMC | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | coarse nyloc nut nm (standard) low carb zp | 13,500 |
|
| ASMC | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | coarse nyloc nut ntm (thin) low carb zp | 17,150 |
|
| ASMC | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | coarse nyloc nut nm (standard) ss316 | 68 |
|
| ASMC | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | coarse nyloc nut ntm (thin) ss18-8 | 700 |
|
| ASMC | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | coarse nyloc nut nm (standard) ss18-8 | 3,909 |
|
| Alma Bolt | MI | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 3300 |
|
| KBS | TN | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nylon insert l/n s/s b18.2.2 | 25,895 |
|
| MTP | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | # 4-40 st/zn nylon insert locknuts | 500 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | Steel | Black Oxide | #4-40 | 4-40 nm nylon insert hex lock nut black oxide | 50,000 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4-40 | 4-40 ne nylon insert hex lock nut 18-8 stainless steel black oxide and oil | 75,000 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 nm nylon insert hex lock nut 18-8 stainless steel | 75,000 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 ntm thin pattern nylon insert hex lock nut 18-8 stainless steel | 50,000 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 nm nylon insert hex lock nut zinc | 50,000 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 ntm thin pattern nylon insert hex lock nut zinc | 100,000 |
|
| Liberty | IL | Lock Nut, Nylon Insert | Steel | Cadmium/Yellow | #4-40 | ne nylon insert stop nut cad black dichromate cad black dichromate | 330 |
|
| Liberty | IL | Lock Nut, Nylon Insert | Steel | Nickel | #4-40 | nylon insert stop nut nickel | 1,200 |
|
| Liberty | IL | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylon insert lock nut rohs compliant | 565 |
|
| Liberty | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4-40 | ne nylon insert stop nut 18-8 s/s stl ide 18-8 s/s stl ide | 1,000 |
|
| Liberty | IL | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | ne nylon insert stop nut 18-8 s/s 18-8 s/s | 3,040 |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | Steel | Zinc/Yellow | #4-40 | 4-40 nm nylon insert hex lock nut zinc yellow | 50,000 |
|
| HBBOLT | CA | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 390 |
|
| HBBOLT | CA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nylock nut | 800 |
|
| HBBOLT | CA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | nylon insert ln 18-8 | 420 |
|
| AIH | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nut thin nylock .25 in wide .11 in plate | 1000 |
|
| AIH | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4-40 | nylon insert locknut s/s pass | 633 |
|
| AIH | AZ | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | nut thin nylock .25 in wide .11 in plate | 1000 |
|
| AIH | AZ | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4-40 | nylon insert locknut s/s pass | 633 |
|
| Alma Bolt | MI | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | hex nut | 688 |
|
| IPC | VA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 | 4-40 elastic stop nut nm steel cr3 zinc-rohs | 16,050 |
|
| IPC | VA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 | 4-40 elastic stop nut nm 18-8 s/s steel | 4,997 |
|
| YANKEE | NH | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-48 | 4-48 nylon insert lock nut-stainless steel-us made | 54 |
|
| Liberty | IL | Lock Nut, Nylon Insert | Brass | Cadmium/Yellow | #4-48 | nylon insert locknut cad cad | 2,997 |
|
| American | NY | Lock Nut, Nylon Insert | Steel | Zinc/Clear | 4/40 x 7/64 | thin nylon insert stop nut plate | 14100 |
|
| American | NY | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-40 x 7/64 | thin nylon insert stop nut plate | 10270 |
|
| Weaver | WA | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 4-.7 | 4-.7 nylock nut 18-8 ss | 679 |
|
| Weaver | WA | Lock Nut, Nylon Insert | Steel | Zinc/Clear | 4-.7 | 4-.7 nylock nut zinc | 685 |
|
| American | NY | Lock Nut, Nylon Insert | Steel | Zinc/Clear | #4-36 | nylon insert stop nut zp | 3000 |
|
| Century | FL | Lock Nut, Nylon Insert | Steel | Plain | 41/64 x 59/64 x .062 | 41/64 x 59/64 x .062 thk flat washer parker 2-841-2-12ss (302 STAINLESS (SEE PRINT) *Q2B* REV E) (302 STAINLESS (SEE PRINT) *Q2B* REV E) | 914 |
|
| Century | FL | Lock Nut, Nylon Insert | Steel | Plain | #4-40 | ms21044c4 | 284 |
|
| American | NY | Lock Nut, Nylon Insert | Steel | Plain | #4-40 x 1/4 x 3/32 | nyl insdert l/n alum | 3600 |
|
| NutsBolts | NE | Lock Nut, Nylon Insert | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 4 | 4m-.7 ss nylock | 27 |
|
| NutsBolts | NE | Lock Nut, Nylon Insert | Steel | Zinc/Clear | 4 | 4m-.7 nylock zp | 100 |
|
| Global | CA | Lock Nut, Nylon Insert | Steel | Plain | 45/8 x 0.063 t4.50 | 2-047-n0552-90 parker seal o-ring 4.625 odx0.063 thx4.50 id | 1 |
|
| Mid-Valley | CA | Lock Nut, Nylon Insert | Steel | Plain | 4.016 | lock nut nylon insert b18.2.2 | inquire |
|
| Kanebridge | IL | Lock Nut, Nylon Insert | Steel | Zinc/Black | #4-40 nm | 4-40 nm nylon insert hex lock nut black zinc | 50,000 |
|
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