5/8 inch length Bolts & Cap Screws
511,847 Bolts & Cap Screws, showing 200, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| MESAFAST | CA | Button Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | 5/16-18 x 5/8 button socket cap screw 18-8 stainless | 100.0 | 
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| MESAFAST | CA | Hex Machine Bolt | Grade A | Galvanized | 1/4-20 x 5/8 | 1/4-20 x 5/8 hex cap screw a307 steel galvanized | 100.0 | 
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| MESAFAST | CA | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 1/4-20 x 5/8 hex cap screw 18-8 stainless | 600.0 | 
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| NAPPCO | TX | Hex Head Cap Screw | Grade 8 | Plain | 5/16-24 x 5/8 | 5/16-24 x 5/8 gr.8 hcs drill head 2 hole | 436 | 
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| NAPPCO | TX | Hex Head Cap Screw | Grade 8 | Plain | 3/8-16 x 5/8 | 3/8-16 x 5/8 gr.8 hcs drill head 2 hole | 333 | 
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| NAPPCO | TX | Socket Head Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 5/8 | socket c/s s/s t316 3/8-16x5/8 | 600 | 
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| NAPPCO | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 5/8 | flat socket c/s s/s 18-8 10-24x5/8 | 82 | 
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| NAPPCO | TX | Hex Flange Screw w/ serr. (Whiz-Lock eq.) | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20 x 5/8 serrated flange screw zinc | 3045 | 
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| NAPPCO | TX | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 5/8 | hex hd c/s s/s 18-8 1/4-28x5/8 | 1900 | 
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| NAPPCO | TX | Hex Flange Screw w/ serr. (Whiz-Lock eq.) | Steel | Zinc/Clear | 5/16-18 x 5/8 | 5/16-18 x 5/8 serrated flange screw zp | 1746 | 
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| NAPPCO | TX | Flange Screw w/o serr. (Frame Bolt) | Grade 5 | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20 x 5/8 gr.5 flanged hex c.s. zinc | 3350 | 
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| NAPPCO | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #5-40 x 5/8 | flat socket c/s s/s 18-8 5-40x5/8 | 870 | 
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| NAPPCO | TX | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 1/4-20 x 5/8 | hex cap scr gr5 zinc pltd 1/4-20x5/8 | 2052 | 
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| NAPPCO | TX | Carriage Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | carriage bolt s/s 18-8 1/4-20x5/8 | 584 | 
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| NAPPCO | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 5/8 | flat socket c/s s/s 18-8 3/8-16x5/8 | 407 | 
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| NAPPCO | TX | Hex Head Cap Screw | Steel | Plain | 3/8-16 x 5/8 | hexhd c/s lowcarbonsteelzp 3/8-16x5/8 | 1056 | 
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| NAPPCO | TX | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #1-72 x 5/8 | socket c/s s/s 18-8 1-72x5/8 | 895 | 
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| NAPPCO | TX | Socket Head Cap Screw | Steel | Plain | #10-24 x 5/8 | socket c/s steel 10-24x5/8 | 660 | 
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| NAPPCO | TX | Socket Head Cap Screw | Steel | Zinc/Clear | 5/16-18 x 5/8 | soc c/s steel zinc&bake 5/16-18x5/8 | 300 | 
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| NAPPCO | TX | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 593 5/16-18 x 5/8 | hex hdc/s s/st316 astmf593 5/16-18x5/8 | 200 | 
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| NAPPCO | TX | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | flat socket c/s s/s 18-8 4-40x5/8 | 517 | 
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| NAPPCO | TX | Socket Head Cap Screw | 316, 317, A4 Stainless | Plain | #10-32 x 5/8 | socket c/s s/s t316 10-32x5/8 | 135 | 
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| NAPPCO | TX | Hex Head Cap Screw | Grade 8 | Plain | 3/8-16 x 5/8 | 3/8-16 x 5/8 gr.8 hex cap screw | 385 | 
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| Liberty | IL | Flat Head Socket Cap Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 flat socket head cap screw zinc rohs | 4,650 | 
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| Liberty | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | 4-40x5/8 flat socket head cap screw 18-8 s/s steel | 2,400 | 
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| Liberty | IL | Socket Head Cap Screw | ASTM A574 | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 socket head cap screw alloy steel light oilmust not be too oilyrohs compliant | 800 | 
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| Liberty | IL | Flange Screw w/o serr. (Frame Bolt) | Grade 5 | Zinc/Clear | 1/4-20 x 5/8 | 1/4-20x5/8 hex head flange bolt grade 5 no serrations zinc | 900 | 
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| Liberty | IL | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 5/8 | 10-24 x 5/8 flat socket head cap screw 18-8 stainless | 500 | 
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| American | NY | Carriage Bolt | Steel | Zinc/Black | #10-24 x 5/8 | c/b black | 500 | 
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| American | NY | Carriage Bolt | Steel | Zinc/Clear | 1/4-20 x 5/8 | c/b pl | 2700 | 
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| American | NY | Hex Flange Screw w/ serr. (Whiz-Lock eq.) | Steel | Zinc/Yellow | #10-32 x 5/8 | hex washer fl/b with serr | 10000 | 
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| American | NY | Hex Head Cap Screw | Steel | Zinc/Yellow | 1/4-20 x 5/8 | hex cap | 2000 | 
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| American | NY | Push-on Bolt Retainer | Steel | Phosphate | 5/16 x 5/8 x .013 | push-on bolt retainer phos & oil | 139700 | 
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| American | NY | Button Head Socket Cap Screw | Steel | Zinc/Yellow | #8-32 x 5/8 | button socket | 200 | 
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| American | NY | Button Head Socket Cap Screw | Steel | Plain | #10-32 x 5/8 | button socket | 2774 | 
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| American | NY | Button Head Socket Cap Screw | Steel | Plain | 1/4-20 x 5/8 | button socket cap | 150 | 
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| American | NY | Socket Head Cap Screw | Steel | Nickel Plated | #2-56 x 5/8 | socket cap pl | 350 | 
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| American | NY | Socket Head Cap Screw | Steel | Zinc/Yellow | #2-56 x 5/8 | socket cap | 100 | 
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| American | NY | Socket Head Cap Screw | Steel | Plain | #6-32 x 5/8 | socket cap | 500 | 
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| American | NY | Socket Head Cap Screw | Steel | Plain | #8-32 x 5/8 | socket cap | 500 | 
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| American | NY | Socket Head Cap Screw | Steel | Cadmium | #10-32 x 5/8 | socket cap cad pl | 400 | 
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| American | NY | Socket Head Cap Screw | Steel | Zinc/Yellow | #10-32 x 5/8 | socket cap drill hd | 1200 | 
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| American | NY | Socket Head Cap Screw | Steel | Plain | #10-24 x 5/8 | socket socket cap | 300 | 
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| American | NY | Socket Head Cap Screw | Steel | Zinc/Yellow | 1/4-28 x 5/8 | socket cap | 200 | 
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| American | NY | Socket Head Cap Screw | Steel | Nickel Plated | 1/4-20 x 5/8 | socket cap pl | 200 | 
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| American | NY | Socket Head Cap Screw | Steel | Plain | 5/16-24 x 5/8 | socket cap | 200 | 
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| American | NY | Socket Head Cap Screw | Steel | Zinc/Yellow | 5/16-24 x 5/8 | socket cap | 140 | 
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| American | NY | Socket Head Cap Screw | Steel | Plain | 5/16-18 x 5/8 | socket cap | 600 | 
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| MFS | KS | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | 38 | 
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| MFS | KS | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | drilled head | 413 | 
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| IRF | NC | Carriage Bolt | Steel | Zinc/Clear | 1/4-20 x 5/8 | c/b stl | 1,870 | 
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| IRF | NC | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 1/4-20 x 5/8 | hex c/sr | 9,740 | 
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| IRF | NC | Hex Head Cap Screw | Grade 8 | Zinc/Clear | 1/4-20 x 5/8 | hex c/sr | 560 | 
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| IRF | NC | Hex Head Cap Screw | Grade 2 | Zinc/Clear | 5/16-18 x 5/8 | hex c/sr | 800 | 
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| IRF | NC | Hex Head Cap Screw | Grade 2 | Plain | 3/8-16 x 5/8 | hex c/sr | 2,900 | 
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| IRF | NC | Socket Head Cap Screw | Steel | Plain | #8-32 x 5/8 | socket c/s | 4,140 | 
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| SunPack | FL | Socket Head Cap Screw | 316, 317, A4 Stainless | Plain | #10-24 x 5/8 | #10-24 x 5/8 316 ss socket hd cap screw | 15 | 
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| SIS | AZ | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | 4-40x5/8 socket head cap screw 18-8 304 steel | 1425 | 
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| SIS | AZ | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 5/8 | 8-32x5/8 hex socket cap screw 18-8 s/s steel | 1835 | 
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | x 5/8 | 5/16-18x5/8 button socket head captive screw 18-8 304 steel | 30000 | 
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| SIS | AZ | Hex Head Cap Screw | Steel | Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.) | 1/4-20 x 5/8 | 1/4-20x5/8 hex cap screw steel zinc w/magni 560 | 11692 | 
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| SIS | AZ | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 5/8 | 3/8-16x5/8 hex head cap screw 18-8 s/s steel | 1400 | 
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| BAYFASTCO | FL | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 5/8 | flat head | 490 | 
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| OBRIEN | OH | Socket Head Cap Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | low hd skt | 4246 | 
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| OBRIEN | OH | Hex Head Cap Screw | Grade 5 | Plain | 1/4-20 x 5/8 | hhcs gr5 black | 1650 | 
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| OBRIEN | OH | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12-24 x 5/8 | shcs 18-8 304 | 400 | 
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| OBRIEN | OH | Flat Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 5/8 | flat skt cap 18-8 304 | 284 | 
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| OBRIEN | OH | Socket Head Cap Screw | Steel | Plain | #10-24 x 5/8 | low hd skt | 97 | 
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| OBRIEN | OH | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-28 x 5/8 | hhcs 18-8 304 | 96 | 
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| OBRIEN | OH | Socket Head Cap Screw | 316, 317, A4 Stainless | Plain | #4-40 x 5/8 | shcs 316 stainless | 94 | 
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| OBRIEN | OH | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 5/8 | hhcs 316 stainless | 52 | 
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| OBRIEN | OH | Hex Head Cap Screw | Grade 5 | Plain | 3/8-16 x 5/8 | hhcs black | 90 | 
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| OBRIEN | OH | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 3/8-16 x 5/8 | hhcs 316 stainless | 86 | 
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| OBRIEN | OH | Flat Head Socket Cap Screw | Steel | Plain | #10-32 x 5/8 | flat socket cap | 1585 | 
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| OBRIEN | OH | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 5/16-18 x 5/8 | hhcs z&y | 84 | 
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| OBRIEN | OH | Socket Head Cap Screw | Steel | Plain | 1/4-28 x 5/8 | shcs nylon patch | 76 | 
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| OBRIEN | OH | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 5/16-24 x 5/8 | hhcs gr5 | 55 | 
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| OBRIEN | OH | Button Head Socket Cap Screw | Steel | Zinc/Clear | 1/4-20 x 5/8 | button skt cap plate iaw astm f 1941 fe/zn 5c ansi b18.3 | 52 | 
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| OBRIEN | OH | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 5/8 | shcs 18-8 304 nylon patch | 39 | 
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| OBRIEN | OH | Flat Head Socket Cap Screw | Steel | Plain | 1/4-20 x 5/8 | ms24671-29 | 34,000 | 
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| OBRIEN | OH | Socket Head Cap Screw | Steel | Zinc/Clear | #4-40 x 5/8 | shcs | 1000 | 
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| OBRIEN | OH | Shoulder Bolt (Stripper Bolt) | Steel | Plain | 1/4 x 5/8 (#10-24) | skt sh/b | 11 | 
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| OBRIEN | OH | Button Head Socket Cap Screw | Steel | Zinc/Black | 5/16-18 x 5/8 | button skt cap black | 856 | 
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| THRDFAST | FL | Hex Head Cap Screw | Grade 2 | Plain | 1/4-20 x 5/8 | gr2 hex c/s b18.2.1 | 2,829 | 
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| THRDFAST | FL | Button Head Socket Cap Screw | Steel | Plain | 5/16-18 x 5/8 | button soc c/s b18.3 | 526 | 
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| THRDFAST | FL | Button Head Socket Cap Screw | Steel | Plain | #8-32 x 5/8 | button soc c/s b18.3 | 493 | 
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| THRDFAST | FL | Hex Head Cap Screw | Grade 5 | Zinc/Clear | 3/8-16 x 5/8 | gr5 hex c/s b18.2.1 | 998 | 
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| THRDFAST | FL | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 18-8 ss socket c/s b18.2.1 b18.3 | 435 | 
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| THRDFAST | FL | Flat Head Socket Cap Screw | Steel | Plain | #6-32 x 5/8 | flat socket c/s b18.2.1 b18.3 | 345 | 
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| THRDFAST | FL | Button Head Socket Cap Screw | Steel | Plain | #10-24 x 5/8 | button soc c/s b18.3 | 811 | 
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| THRDFAST | FL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 3/8-16 x 5/8 | gr8 hex c/s z&y b18.2.1 | 219 | 
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| THRDFAST | FL | Socket Head Cap Screw | Steel | Plain | #4-40 x 5/8 | socket c/s b18.2.1 b18.3 | 214 | 
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| THRDFAST | FL | Carriage Bolt | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | 18-8 ss c/b b18.5 | 208 | 
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| THRDFAST | FL | Button Head Socket Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 5/8 | 18-8 ss button soc c/s b18.3 | 147 | 
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| THRDFAST | FL | Socket Head Cap Screw | Steel | Plain | 3/8-16 x 5/8 | socket c/s b18.2.1 b18.3 | 141 | 
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| THRDFAST | FL | Hex Head Cap Screw | Brass | Plain | 3/8-16 x 5/8 | hex c/s b18.2.1 | 251 | 
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| THRDFAST | FL | Hex Head Cap Screw | Brass | Plain | 1/4-20 x 5/8 | hex c/s b18.2.1 | 139 | 
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| THRDFAST | FL | Socket Head Cap Screw | Steel | Plain | #10-24 x 5/8 | socket c/s b18.2.1 b18.3 | 86 | 
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| THRDFAST | FL | Hex Head Cap Screw | Grade 8 | Zinc/Yellow | 1/4-20 x 5/8 | gr8 hex c/s z&y b18.2.1 | 62 | 
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| THRDFAST | FL | Socket Head Cap Screw | Steel | Plain | 5/16-18 x 5/8 | socket c/s b18.2.1 b18.3 | 36 | 
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| THRDFAST | FL | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2-13 x 5/8 | 18-8 ss socket c/s b18.2.1 b18.3 | 19 | 
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| THRDFAST | FL | Shoulder Bolt (Stripper Bolt) | Steel | Plain | 5/16 x 5/8 (1/4-20) | socket sh/b b18.3 | 19 | 
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| THRDFAST | FL | Shoulder Bolt (Stripper Bolt) | Steel | Plain | 1/4 x 5/8 (#10-24) | socket sh/b b18.3 | 15 | 
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| Lightning | LA | Socket Head Cap Screw | ASTM A574 | Black Oxide | 3/8-16 x 5/8 | low socket c/s | 148 | 
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| QFS | MI | Hex Head Cap Screw | Brass | Plain | 1/4-20 x 5/8 | c/s , USS thread b18.2.1 | stock | 
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| QFS | MI | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 1/4-20 x 5/8 | c/s , USS thread (t-316) b18.2.1 | stock | 
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| QFS | MI | Hex Head Cap Screw | 316, 317, A4 Stainless | Plain | 5/16-18 x 5/8 | c/s , USS thread (t-316) b18.2.1 | stock | 
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| QFS | MI | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 5/8 | socket head c/s USS (1960 series)3a fit (18-8) key size 9/64 b18.3 | 100 | 
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| QFS | MI | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-24 x 5/8 | socket head c/s USS (1960 series)3a fit (18-8) key size 9/64 b18.3 | 200 | 
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| QFS | MI | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | c/s , USS thread (18-8) b18.2.1 | stock | 
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| QFS | MI | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 5/8 | socket head c/s USS (1960 series)3a fit (18-8) key size3/16 b18.3 | 300 | 
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| QFS | MI | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | socket head c/s USS (1960 series)3a fit (18-8) key size1/4 b18.3 | 200 | 
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| QFS | MI | Socket Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8-16 x 5/8 | socket head c/s USS (1960 series)3a fit (18-8) key size5/16 b18.3 | 450 | 
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| QFS | MI | Hex Head Cap Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 5/8 | c/s , USS thread (18-8) b18.2.1 | stock | 
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