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1 Hex Coupling Nuts
Coupling Nuts, also known as Extension Nuts, are threaded fastener for joining two male threaded objects, most commonly threaded rod, but also pipes. The outside of the coupling nut is usually a hex so it can be gripped by a wrench.
129 results, (click on any line for more information)
| Search Results Sponsored by American Imperial Screw, your source for Coupling Nuts. For more results, visit www.discountscrews.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| American | NY | Coupling Nut | Steel | Zinc/Clear | 1-8 | (2-3/4x1-3/8) coupling nut pl | 44 |
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| American | NY | Coupling Nut | 316, 317, A4 Stainless | Plain | 1-8 | rod coupler nut 316 stainless | 1 |
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| American | NY | Coupling Nut | Steel | Galvanized | 1 x 3 | 1 x 3 coupling nut hdg | 2 |
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| Buy Hex Coupling Nuts from one of our FCH Network Members | ||||||||
| Century | FL | Coupling Nut | Plain | 1 | an818-l16d nut hex coupling 1in tube drill/bl | 354 |
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| Jackson | MS | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 1/4 x 2 1/2 | oal nc coupling nut | 185 |
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| Weaver | WA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 | 1-8 coupling nut 18-8 ss | 2 |
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| METRO IND | OH | Coupling Nut | Steel | Zinc/Clear | 1-8 | coupling nut uss | 11 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | 1-8 x 1 1 5/8 | 1-8x1 1/2 coupling nut 1 5/8 waf | 5 |
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| Jackson | MS | Coupling Nut | Steel | Galvanized | 1-8 | nc coupling nut hdg 1 1/4wafx2 1/2 oal | 2 |
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| Jackson | MS | Coupling Nut | Grade 2H | Galvanized | 1-8 | nc 2h coupling nut hdg 1 5/8 wafx2 3/4 oal | 24 |
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| Jackson | MS | Coupling Nut | Steel | Plain | 1 | 1 nc coupling nut finish | 317 |
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| YANKEE | NH | Coupling Nut | Steel | Zinc/Clear | 1-8 | 1-8 (2-3/4 long) coupling nut steel zinc plated | 10 |
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| YANKEE | NH | Coupling Nut | Steel | Zinc/Clear | 1-14 | coupling nut | 10 |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| GLF | OH | Coupling Nut | Steel | Plain | 1-8 x 1 1/4 x 2 1/2 | 1-8 x 2-1/2 hex coupling nut stl pln 153687 | 20 |
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| SunPack | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 304 ss coupling nut | 8 |
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| SWACO | OH | Coupling Nut | Grade 5 | Plain | 1-8 x 2 3/4 | 1-8x2-3/4 coupling nut grade 5 | 9 |
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| SWACO | OH | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | 1-8x2-1/2 coupling nut zinc | 21 |
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| Big Red | OK | Coupling Nut | Grade 8 | Plain | 1-8 x 2 3/4 | 1-8 x 2-3/4 long nc gr.8 hardened hex coupling nut (1-1/2 hex)-plain finish (black) | 50 |
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| ACCURATE | IL | Coupling Nut | Steel | Zinc/Clear | 1 | 1 1/4-7 hex coupling nut (1-5/8 widex3 long) | 4 |
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| ACCURATE | IL | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | hex coupling nut | 11 |
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| BHAM | AL | Coupling Nut | Steel | Plain | 1-14 x 1 3/8 x 2 3/4 | 1-14 x 2 3/4 coupling nut | | 3 |
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| Brikksen | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | 1-8 hex coupling nut 18-8 ss | inquire |
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| A-Plus Co | OR | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 1/4 x 2 | 1-8 x 2 coupling nut zp nc | 27 |
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| OneMonroe | NC | Coupling Nut | Steel | Zinc/Clear | 1-8 x 7/8 | 1-8 x 7/8 reducer coupling nut zinc pltd | 16 |
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| Alma Bolt | MI | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 1/4 | 1-8 zinc plated | coupling nut | 91 |
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| Alma Bolt | MI | Coupling Nut | Grade 5 | Plain | 1-8 x 1 1/4 | 1-8 grade 5(1 3/8af x 2 3/4lg) | coupling nut | 50 |
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| NutsBolts | NE | Coupling Nut | Steel | Zinc/Clear | 1-8 | 1-8 coupling nut zp | 92 |
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| NutsBolts | NE | Coupling Nut | Steel | Galvanized | 1-8 | 1-8 coupling nut hdg | 39 |
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| Liberty | IL | Coupling Nut | Steel | Zinc/Clear | 1-8 | rod coupling nut plate plate | 10 |
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| Liberty | IL | Coupling Nut | Steel | Plain | 1-8 | rod coupler | 5 |
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| Future Fastener | TX | Coupling Nut | Steel | Zinc/Clear | 1-8 | 1-8 coupling nut plt | 65 |
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| Empire | WA | Coupling Nut | Steel | Plain | 1-8 x 2 1/2 | 1-8 x 2-1/2 rod coupling nut | 73 |
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| Empire | WA | Coupling Nut | Steel | Plain | 1-8 x 2 1/2 | 1-8 x 2-1/2 rod coupling nut | 200 |
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| BHAM | AL | Coupling Nut | ASTM A563 Grade DH | Plain | 1-8 x 3 | 1-8x3 a563 dh hex coupling nut b18.2.2 | 2 |
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| BHAM | AL | Coupling Nut | Steel | Zinc/Clear | 1-8 x 5/8 | 1-8x5/8-11 reducer coupler nut zinc b18.2.2 | 173 |
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| SunPack | FL | Coupling Nut | Steel | Galvanized | 1-8 | 1-8 coupling nut hdg | 7 |
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| Raw Produ | NJ | Coupling Nut | 316, 317, A4 Stainless | Plain | 1-8 x 1 1/4 | coupling nuts 316 ss 1-8 | 16 |
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| Raw Produ | NJ | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 1/4 | coupling nuts zinc 1-8 | 100 |
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| Raw Produ | NJ | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 1 1/4 | coupling nuts 304 ss 1-8 | 6 |
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| Raw Produ | NJ | Coupling Nut | Steel | Galvanized | 1-8 x 1 1/4 | coupling nuts hdg 1-8 (1-3/8 f x 2-3/4 l) | 26 |
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| Raw Produ | NJ | Coupling Nut | Grade A | Plain | 1-8 x 1 1/4 | coupling nut-a563 grade a plain steel 1-8 (1-3/8 flats) x 2-3/4 | 500 |
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| Raw Produ | NJ | Coupling Nut | Steel | Galvanized | 1-8 x 1 1/4 | coupling nuts hdg 1-8 (1-1/4 f x 2-1/2 l) | 24 |
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| BHAM | AL | Coupling Nut | Steel | Plain | 1-8 x 2 1/2 | 1-8x2 1/2 coupling nut b18.2.2 | 2 |
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| R&S Indus | OR | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 3/8 x 2 3/4 | 1-8 x 1 3/8 x 2 3/4 hex coupling regular nut nc zinc | 20 |
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| American | NY | Coupling Nut | Steel | Zinc/Clear | 1-8 | (2-3/4x1-3/8) coupling nut pl | 44 |
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| American | NY | Coupling Nut | Steel | Galvanized | 1 x 3 | 1 x 3 coupling nut hdg | 2 |
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| Fastener | OH | Coupling Nut | Steel | Zinc/Clear | 1-8 x 1 1/4 x 2 3/4 | coupling nut 1-8 x 2-3/4 lg x 1-3/8 w.a.f. zinc plated | | 12 |
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| Wurth Ind | IN | Coupling Nut | Grade 2 | Zinc/Clear | 1-8 x 1 1/4 x 2 3/4 | hex coupling nut grade 2 zn 1-8x2 3/4 1 3/8 zinc/clear | 75 |
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| WINA | MN | Coupling Nut | Aluminum | Zinc/Clear | 1-8 x 1 1/4 x 2 3/4 | hex coupling nut gr2 zn 1-8x2 3/4 1 3/8 | 75 |
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| Wurth Con | NY | Coupling Nut | Steel | Plain | 1-1/8-5 | 1-1/8-5 acme x 1-1/8 hex coupling nut asme b18.2.2 1-3/4 hex steel plain | 800 |
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| Ababa | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 2 1/2 | 1-8 x 2 1/2 cplng nut 1 3/8 a.f. s/s b18.2.2 | 2 |
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| Ababa | CA | Coupling Nut | Steel | Plain | 1-8 x 1 1/4 x 2 3/4 | 1-8 x 2 3/4 cplng nut 1-3/8 a/f tapped h7 stl pln | 52 |
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| Weaver | WA | Coupling Nut | Steel | Zinc/Clear | 1-14 | 1-14 coupling nut zinc | 5 |
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| Olander | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 cplng nut 1-3/8 hx non-rohs | 2 |
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| Ababa | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 2 1 3/8 | 1-8 x 2 3/4 cplng nut 1 3/8 af s/s b18.2.2 | 4 |
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| Ababa | CA | Coupling Nut | Steel | Plain | 1-8 x 2 1 3/8 | 1-8 x 2 3/4 cplng nut 1 3/8 af stl pln b18.2.2 | 2 |
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| Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1 3/8 | 1-8 x 2 3/4 cplng nut 1 3/8 af stl znc b18.2.2 | 10 |
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| Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1 3/8 | 1-8 x 2 3/4 cplng nut 1 3/8 af stl znc b18.2.2 | 5 |
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| XL Screw | GA | Coupling Nut | Ste el | Zinc/Clear | 1-8 x 1 3/8 x 2 3/4 | hex coupling nuts dc-dc zp | 60 |
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| SII | IN | Coupling Nut | Steel | Zinc/Clear | 1-8 | 1-8 zinc rod coupling) b18.2.2 | 50 |
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| MidStates | MI | Coupling Nut | Steel | Zinc/Clear | 1 x 1/2 | 1inx1/2 reducer coupling nut znc | 4 |
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| MidStates | MI | Coupling Nut | Steel | Plain | 1-8 | coupling nut lh thrd | 4 |
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| MidStates | MI | Coupling Nut | Steel | Plain | 1-8 x 2 1/2 | coupling nut | 50 |
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| Hodell | OH | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | 1-8x2 1/2 hex cplng nut zinc | 447 |
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| HBBOLT | CA | Coupling Nut | Steel | Galvanized | 1-8 | coupling nut h.d.g. | 36 |
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| HBBOLT | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | hex coupling nut | 37 |
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| HBBOLT | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 | hex coupling nut 18-8 304 | 18 |
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| SunPack | FL | Coupling Nut | Steel | Galvanized | 1-8 | 1-8 coupling nut hdg | 7 |
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| QFC | TX | Coupling Nut | Steel | Zinc/Clear | 1-8 1 1/4 x 2 1/2 | 1-8 bzp coupling nut 1 1/4x2 1/2 b18.2.2 | 58 |
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| Hodell | OH | Coupling Nut | Steel | Plain | 1-8 x 1 3/8 x 2 3/4 | 1-8 x1 3/8 x2 3/4 hex cplng nut | 24 |
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| Hodell | OH | Coupling Nut | Steel | Plain | 1-8 x 1 3/8 x 2 3/4 | 1-8 x1 3/8 x2 3/4 hex cplng nut | 24 |
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| ISSCO | MO | Coupling Nut | Grade 2 | Zinc/Clear | 1-14 x 2 1/2 | nut hex coupling z/p | 85 |
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| B & K FAST | PA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | 1-8 x 2 1/2 coupling nuts zinc b18.2.2 | 12 |
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| B & K FAST | PA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 | 1-8 x 2 3/4 long coupling nuts zinc b18.2.2 | 7 |
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| B & K FAST | PA | Coupling Nut | Steel | Plain | 1-14 x 2 3/4 | 1-14 x 2 3/4 hex coupling nuts pln b18.2.2 | 9 |
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| Lubker Di | PA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | 1-8x2 1/2 hex rod coupling nut zp | 50 |
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| TSF | TX | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 x 1 | hex coupling nut steel zinc plated 1 -8 x 2 3/4 x 1 3/8 af | 21 |
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| Kanebridge | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-8 x 2 1/2 | 1-8x2 1/2 hex rod coupling nut 1 1/4 inch across flats 18-8 stainless steel | 0.500 |
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| Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 | 1-8x2 3/4 hex rod coupling nut 1 3/8 inch across flats zinc | 0.500 |
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| OSSCO | RI | Coupling Nut | 316, 317, A4 Stainless | Plain | 1-8 x 2 1/2 | 1-8x2 1/2 coupling nut 316 s/s b18.2.2 | 8 |
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| OSSCO | RI | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | 1-8x2 1/2 coupling nut plated b18.2.2 | 807 |
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| OSSCO | RI | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 | 1-8x2 3/4 coupling nut plated b18.2.2 | 10 |
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| QFC | TX | Coupling Nut | Steel | Galvanized | 1-8 | 1-8 hvy hex coup nut hdg regular b18.2.2 | 6 |
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| BHAM | AL | Coupling Nut | Steel | Plain | 1-8 x 2 1/2 | coupling nut | 30 |
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| Lippin | CA | Coupling Nut | Grade 5 | Plain | 1-8 x 3/4 | 1-8 x 3/4-10 reducer coupling nut grade 5 with witness holes plain | 10 |
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| Lippin | CA | Coupling Nut | Grade 5 | Plain | 1-8 x 7/8 | 1-8 x 7/8-9 reducer coupling nut grade 5 with witness holes plain | 10 |
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| Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 3/4 | reducer coupling nut zinc plated | 100 |
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| Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 7/8 | reducer coupling nut zinc plated | 30 |
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| Lippin | CA | Coupling Nut | Steel | Plain | 1-8 x 5/8 | reducer coupling nut plain | 151 |
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| Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 | coupling nut w/ sight-hole zinc plated | 1350 |
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| Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 | coupling nut zinc plated | 1000 |
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| Lippin | CA | Coupling Nut | Steel | Plain | 1-8 | coupling nut plain | 842 |
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| Lippin | CA | Coupling Nut | Steel | Galvanized | 1-8 | coupling nut hot dipped galvanized | 1700 |
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| Lippin | CA | Coupling Nut | Steel | Galvanized | 1-8 | coupling nut w/ sight-hole hot dipped galvanized | 1685 |
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| Jackson | MS | Coupling Nut | Grade 2H | Plain | 1-8 1 5/8 | 1-8 nc 2h coupling nut 1 5/8 wafx2 3/4 oal | 3 |
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| Jackson | MS | Coupling Nut | Steel | Zinc/Clear | 1-14 x 1 3/8 | wafx2 3/4 oal nf coupling nut | 4 |
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| Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 3/4 | 1-8 x 2 3/4 coup nut zn (75) | 150 |
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| Lippin | CA | Coupling Nut | Steel | Plain | 1-8 | 1-8 coup nut plain (50) | 642 |
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| FastWare | Sask | Coupling Nut | Grade 2 | Plain | 1-14 x 1 3/8 | afx2 3/4 uns coupling nut | 1,081 |
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| FastWare | Sask | Coupling Nut | Grade 2 | Zinc/Clear | 1-8 x 1 3/8 | afx2 3/4 nc coupling nut | 10 |
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| FastWare | Sask | Coupling Nut | Grade 2 | Plain | 1-8 x 1 3/8 | afx2 3/4 nc coupling nut | 20 |
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| American | NY | Coupling Nut | 316, 317, A4 Stainless | Plain | 1-8 | rod coupler nut 316 stainless | 1 |
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| ASFCORP | MI | Coupling Nut | Grade 2 | Zinc/Clear | 1-8 x 2 1/2 | 1-8 x 2 1/2 hex coupling nut sae j995 gr 2 tri zn fe/zn 5an pkg | 6 |
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| OBRIEN | OH | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | hex coupling nut | 69 |
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| OBRIEN | OH | Coupling Nut | Steel | Plain | 1-8 2 1/2 1 1/4 | 1-8 hex coupling nut 2 1/2 length 1 1/4 width | 200 |
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| THRDFAST | FL | Coupling Nut | 316, 317, A4 Stainless | Plain | 1-8 | t-316 ss coupling nut b18.2.2 | 9 |
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| THRDFAST | FL | Coupling Nut | Steel | Plain | 1-8 | coupling nut b18.2.2 | 1 |
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| THRDFAST | AL | Coupling Nut | Grade 2H | Plain | 1-8 x 2 3/4 | h coupling nut b18.2.2 | 20 |
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| KBS | TN | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1-14 x 3 | 1-14 x 3 coupling nut s/s b18.2.2 | 99 |
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| THRDFAST | AL | Coupling Nut | Steel | Zinc/Clear | 1-8 x 2 1/2 | coupling nut b18.2.2 | 43 |
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| THRDFAST | OK | Coupling Nut | Steel | Plain | 1-8 | coupling nut b18.2.2 | 25 |
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| THRDFAST | OK | Coupling Nut | Steel | Zinc/Clear | 1-8 2 1/2 | 1-8 coupling nut length 2 1/2 b18.2.2 | 5 |
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| THRDFAST | AL | Coupling Nut | Grade 5 | Galvanized | 1-8 x 2 3/4 | coupling nut hdg b18.2.2 | 2 |
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| THRDFAST | AL | Coupling Nut | Grade A | Galvanized | 1-8 x 3 | a563 gr a hex coupling nut hdg domestic b18.2.2 | 40 |
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| Revcar | VA | Coupling Nut | Steel | Galvanized | 1-8 x 2 3/4 | coupling nut 1-1/2 ac flats hdg tapped oversize .020 | 36 |
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| Valley Nu | WA | Coupling Nut | Steel | Plain | 1-8 x 2 3/4 x 1 | 3/8 nc hex coupling nut pl | 50 |
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| Valley Nu | WA | Coupling Nut | ASTM A563 Grade DH | Galvanized | 1-8 x 6 x 1 5/8 | a563 dh hvy hex coupling nut hdg usa | 4 |
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| Valley Nu | WA | Coupling Nut | Steel | Zinc/Black | 1-14 | nf hex cplng economy nut zb | 29 |
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| Valley Nu | WA | Coupling Nut | Steel | Zinc/Black | 1-8 x 2 3/4 x 1 | 3/8 nc hex coupling nut zb | 63 |
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| Valley Nu | WA | Coupling Nut | ASTM A563 Grade DH | Galvanized | 1-8 x 3 x 1 5/8 | a563 grdh hvy hex coupling nut hdg usa | 73 |
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| Valley Nu | WA | Coupling Nut | ASTM A563 Grade DH | Plain | 1-8 x 3 x 1 5/8 | a563 grdh hvy hex coupling nut usa | 1 |
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| Valley Nu | WA | Coupling Nut | Steel | Plain | 1-8 x 1/2 | nc hex reducing coupling nut pl | 1 |
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| Valley Nu | WA | Coupling Nut | Steel | Galvanized | 1-8 x 2 3/4 x 1 | 3/8 nc hex coupling nut hdg | 55 |
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| Valley Nu | WA | Coupling Nut | Grade A | Galvanized | 1-8 x 4 | a563 gra hvy hex coupling nut hdg usa | 24 |
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| AMC Inc | CA | Coupling Nut | Grade 2 | Plain | 1-8 | coupling nut | 70 |
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