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5/16 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.
118 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 | 5/16-18 1 1/8 x 1/2 | 5/16-18 (1-1/8x1/2) coupling nut pl | 3800 |
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American | NY | Coupling Nut | Steel | Plain | 5/16-181 1/2 x 3/8 | 5/16-18(1-1/2x3/8) coupling nut | 8000 |
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American | NY | Coupling Nut | Steel | Zinc/Clear | 5/16-18 1 3/4 x 5/8 | 5/16-18 (1-3/4x5/8) coupling nut zp | 350 |
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Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18 x 1 1/8 coup nut zn (1000) | 12800 |
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Ababa | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 7/16 | 5/16-18 x 1 cplng nut 7/16 af s/s b18.2.2 | 81 |
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Ababa | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 7/16 | 5/16-18 x 1 cplng nut 7/16 af s/s b18.2.2 | 20 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/8 cplng nut 1/2 af stl znc b18.2.2 | 520 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/2 | 5/16-18 x 1 1/8 cplng nut 1/2 af stl znc b18.2.2 | 100 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18 x 1 3/4 cplng nut stl znc b18.2.2 | 150 |
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Ababa | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 7/8 | 5/16-18 x 7/8 cplng nut s/s b18.2.2 | 4 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 7/16 | 5/16-18 x 7/8 cplng nut 7/16 af stl znc b18.2.2 | 900 |
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YANKEE | NH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18 x 1-1/8 coupling nut steel zinc plated | 251 |
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YANKEE | NH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18 x 7/8 coupling nut narrow zinc pltd | 21 |
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Weaver | WA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 coupling nut 18-8 ss | 125 |
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Weaver | WA | Coupling Nut | Steel | Plain | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 coupling nut plain | 350 |
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Weaver | WA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 coupling nut zinc | 200 |
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Weaver | WA | Coupling Nut | Steel | Plain | 5/16-18 x 7/8 | 5/16-18x7/8 short coupling nut plain | 100 |
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Weaver | WA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18x7/8 short coupling nut zinc | 2000 |
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Express | CA | Coupling Nut | Steel | Plain | 5/16-18 x 7/16 x 7/8 | 5/16-18x7/16x7/8 coupling nut econo plain | 150 |
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RCFast | AZ | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | hex coupling nut stl 1 | 3100 |
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B & K FAST | PA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18 x 7/8 short coupling nuts zinc b18.2.2 | 10 |
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B & K FAST | PA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18 x 1 1/8 hex coupling nuts zinc b18.2.2 | 451 |
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B & K FAST | PA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | 5/16-18 x 1 stainless coupling nuts b18.2.2 | 29 |
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SII | IN | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 x 7/16 | 5/16-18 x l7/8 x w7/16 coupling nut zinc plated) b18.2.2 | 1339 |
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SII | IN | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 x 7/16 | 5/16-18 x l1-3/4 x w7/16 coupling nut zinc plated) b18.2.2 | 250 |
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METRO IND | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | coupling nut uss | 970 |
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TSF | TX | Coupling Nut | 316, 317, A4 Stainless | Plain | 5/16-18 x 1 | hex coupling nut 316 ss 5/16-18 x 1 | 1 |
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YANKEE | NH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | coupling nut | 488 |
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ACCURATE | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 hex coupling nut zinc | 310 |
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ACCURATE | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | hex coupling nuts 18-8 304 | 56 |
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GLF | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 x 1/2 | 5/16-18x1-3/4x1/2 waf hex coupling nut stl zc b18.2.2 () () () | 202 |
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GLF | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 x 5/8 | 5/16-18x1-3/4x5/8 waf hex coupling nut stl zc b18.2.2 () () () | 96 |
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NAPPCO | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | hex coupling nut steel zp 5/16-18x1-3/4 (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) | 100 |
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BAYFASTCO | FL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | coupling nut | 2400 |
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THRDFAST | FL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | coupling nut b18.2.2 | 45 |
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Liberty | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/2 | 5/16-18x1/2 afx1-3/4 long rod coupling nut zinc | 500 |
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UNEEDA | NJ | Coupling Nut | Steel | Plain | 5/16-18 | coupling nut | 274 |
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GUIDON | NJ | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 1/2 hex | 850 |
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SRF | AL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | coupling nut s/s | 436 |
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NutsBolts | NE | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 ss coupling nut | 46 |
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NutsBolts | NE | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | 5/16-18 s coupling nut zp | 536 |
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NutsBolts | NE | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | 5/16-18 l coupling nut zp | 57 |
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NutsBolts | NE | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 1/2 | 5/16-18 x 7/8 coupling nut zp 1/2 hex | 401 |
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Standard | MA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 coupling nut 18-8 stainless steel b18.2.2 | 2950 |
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Future Fastener | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | 5/16-18 coupling nut plt | 9 |
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Future Fastener | TX | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 coupling nut ss | 40 |
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Jackson | MS | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | nc heavy coupling nut 5/8 wafx1 3/4 oal | 135 |
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Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | coupling nut zinc plated | 13389 |
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Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/2 x 7/8 | coupling nut zinc plated | 1450 |
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Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/4 | reducer coupling nut zinc plated | 200 |
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Lippin | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | hex coupling nut stainless 18-8 | 50 |
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Delta | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | rod coupling nut zinc-econ 5/16-18 (7/16 AF X 7/8 LONG) | 2620 |
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Delta | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | rod coupling nut zinc 5/16-18 (5/8 AF X 1 3/4 LONG) | 100 |
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Delta | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | coupling nut zinc 5/16-18 (1/2 AF X 1 3/4 LONG) | 89 |
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All Size | TX | Coupling Nut | Steel | Plain | 5/16-18 x 7/8 | 5/16-18 x 7/8 short coupling nut b18.2.2 | 16 |
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All Size | TX | Coupling Nut | Steel | Plain | 5/16-18 x 1 3/4 | 5/16-18 x 1-3/4 coupling nut heavy b18.2.2 | 86 |
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SWACO | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18x7/8 coupling nut zinc | 193 |
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SRF | AL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | coupling nut | 87 |
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SRF | AL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | coupling nut | 1,251 |
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CNB | IL | Coupling Nut | Grade 2 | Zinc/Clear | 5/16-18 | coupling nut gr.2 plate | 22 |
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QFC | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18 x 7/8 hex coupling nut zinc b18.2.2 | 1000 |
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FastWare | Sask | Coupling Nut | Grade 2 | Zinc/Clear | 5/16-18 x 1/2 | afx1 nc coupling nut | 122 |
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ASMC | IL | Coupling Nut | Grade A | Zinc/Clear | 5/16-18 x 7/16 x 7/8 | 5/16-18xw7/16xl7/8 coarse a563 gra hex rod coupling nut low carb zp | 118 |
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Alma Bolt | MI | Coupling Nut | Steel | Plain | 5/16-18 | heavy(5/8 afx1 3/4) coupling nut | 2056 |
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Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18x7/8 hex rod coupling nut 7/16 across flats zinc | 5,000 |
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Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18x1 1/8 hex rod coupling nut 1/2 inch across flats zinc | 5,000 |
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Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18x7/8 hex rod coupling nut 1/2 inch across flats zinc | 5,000 |
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Liberty | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | rod coupling nut 7/8lg 1/2af 18-8 s/s 1/2af 18-8 s/s | 500 |
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Liberty | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | rod coupling nut nut | 97 |
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HBBOLT | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | hex coupling nut | 607 |
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HBBOLT | CA | Coupling Nut | Steel | Plain | 5/16-18 | economy coupling nut 7/8 | 150 |
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HBBOLT | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 1 | coupling nut 18-8 ss | 98 |
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IPC | VA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/16 | 5/16-18x7/16 hex coupling nut steel cr3 zinc-rohs 7/8 long | 75 |
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Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | 5/16-18x1 3/4 hex rod coupling nut 1/2 inch across flats zinc | 5,000 |
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Kanebridge | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 x 7/8 | 5/16-18x7/8 hex rod coupling nut 1/2 inch across flats 18-8 stainless steel | 4.375 |
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Kanebridge | IL | Coupling Nut | Grade 5 | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18x1 1/8 hex rod coupling nut 1/2 inch across flats grade 5 zinc | 16.250 |
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XL Screw | GA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/16 x 7/8 | hex coupling nuts dc-dc zp | 2,000 |
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XL Screw | GA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/2 x 1 1/8 | hex coupling nuts dc-dc zp | 900 |
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MTP | CA | Coupling Nut | Steel | Plain | 5/16-18 x 1 1/2 | 5/16-18 x 1 steel plain coupling nut 1/2 a/f | 800 |
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Northern | MN | Coupling Nut | Steel | Black Oxide | 5/16-18 | nc coupler nut black rie4037a | 349 |
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Alma Bolt | MI | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | 5/16-18 zinc plated(1/2x1 1/8) coupling nut | 1413 |
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ASMC | IL | Coupling Nut | Grade A | Galvanized | 5/16-18 x 1/2 | 5/16-18xw1/2xl1 3/4 coarse a563 gra hex rod coupling nut low carb hdg b18.2.2 | 159 |
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NAPPCO | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 3/4 | hex coupling nut steel zp 5/16-18x1-3/4 (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) (160-NUTS (STANDARD)) | 800 |
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Bostwick | IN | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 | 5/16-18 x 1 reducing coup nut 3/8-16 zinc b18.2.2 | 33 |
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Fastener | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | coupling nut 5/16-18x7/8 zinc plated | 1130 |
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Fastener | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | coupling nut 5/16-18x1-1/8 zinc plated | 3 |
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JET FITTING | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 7/8 | 5/16-18x7/8 coupling nut zinc CN-.31C.87-Z b18.2.2 | 193 |
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QCS | OR | Coupling Nut | Steel | Plain | 5/16-18 x 7/16 x 7/8 | 5/16-18x7/16x7/8 econo rod coupling nut plain | 300 |
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Valley Nu | WA | Coupling Nut | Steel | Zinc/Black | 5/16-18 x 1 3/4 | nc hex coupling nut zb | 118 |
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Alma Bolt | MI | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | (5/8afx1 3/4lg) coupling nut | 300 |
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SWACO | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 1/8 | 5/16-18x1 1/8 coupling nut zinc | 402 |
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Komar | MO | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1 | lg. coupling nut 1/2 dia | 2800 |
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Valley Nu | WA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | nc 18-8 ss coupling nut | 15 |
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THRDFAST | FL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 | coupling nut b18.2.2 | 25 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-24 x 7/8 7/16 | 5/16-24 x 7/8 cplng nut 7/16 af stl znc b18.2.2 | 50 |
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Ababa | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-24 x 7/8 7/16 | 5/16-24 x 7/8 cplng nut 7/16 af stl znc b18.2.2 | 25 |
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Weaver | WA | Coupling Nut | Steel | Zinc/Clear | 5/16-24 | 5/16-24 coupling nut zinc | 1800 |
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METRO IND | OH | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | coupling nut SAE s/s | 25 |
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OBRIEN | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-24 x 7/8 | hex coupling nut | 150 |
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Lippin | CA | Coupling Nut | Steel | Zinc/Clear | 5/16-24 | coupling nut fine zinc plated | 1065 |
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ASMC | IL | Coupling Nut | Grade A | Plain | 5/16-24 x 7/16 x 7/8 | 5/16-24xw7/16xl7/8 fine a563 gra hex rod coupling nut low carb | 889 |
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ASMC | IL | Coupling Nut | Grade A | Zinc/Clear | 5/16-24 x 7/16 x 7/8 | 5/16-24xw7/16xl7/8 fine a563 gra hex rod coupling nut low carb zp | 373 |
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Kanebridge | IL | Coupling Nut | Steel | Zinc/Clear | 5/16-24 x 7/8 | 5/16-24x7/8 hex rod coupling nut 7/16 across flats zinc | 5,000 |
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Fastener | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-24 x 7/8 | coupling nut 5/16-24x7/8long zinc plated | 24 |
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Jackson | MS | Coupling Nut | Steel | Zinc/Clear | 5/16 | nc coupling nut | 374 |
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American | NY | Coupling Nut | Steel | Zinc/Clear | 5/16-18 1 1/8 x 1/2 | 5/16-18 (1-1/8x1/2) coupling nut pl | 3800 |
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American | NY | Coupling Nut | Steel | Plain | 5/16-181 1/2 x 3/8 | 5/16-18(1-1/2x3/8) coupling nut | 8000 |
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American | NY | Coupling Nut | Steel | Zinc/Clear | 5/16-18 1 3/4 x 5/8 | 5/16-18 (1-3/4x5/8) coupling nut zp | 350 |
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SIS | AZ | Coupling Nut | Steel | Zinc/Clear | 5/16 | 5/16 coupling nut steel zinc | 50 |
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Jackson | MS | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | nc coupling nut 18-8 304 | 52 |
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OBRIEN | OH | Coupling Nut | Steel | Zinc/Clear | 5/16-18 1/2 | 5/16-18 coupling nut 1/2 af 7/8 long | 194 |
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QFC | TX | Coupling Nut | Steel | Zinc/Clear | 5/16-18 1/2 x 1 3/4 | 5/16-18 long coupling nut 1/2x1 3/4l zinc b18.2.2 | 150 |
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ZAL INDUS | CA | Coupling Nut | Steel | Zinc/Clear | 5/16 x 1/4 | 5/16 x 1/4 reducer coupling nut pltd | 300 |
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BIG BOLT | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 1 3/4 | nutscoupling nut300 (a1 a2 18-8 304 310 etc.)5/16-18hex 1 3/4 ong | 500 |
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Endries | WI | Coupling Nut | Steel | Plain | 5/16-18x1/2x7/8 coupling nut enviro-black hex free 500hr to red | 840 |
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Liberty | IL | Coupling Nut | Steel | Plain | 5/16-18 x 1/2 af x 1-3/4 long rod coupling nut plain | 950 |
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Century | NY | Coupling Nut | Steel | Plain | 5/16-18 x 1/2 wide 1-3/4 long coupling nut steel plain | 300 |
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NutsBolts | NE | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 x 7/8 1/2 | 5/16x7/8 ss coupling nut 1/2 hex | 45 |
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Hewes | NY | Coupling Nut | Steel | Zinc/Clear | 5/16 x 1 1/8 | 5/16x 1-1/8 rod coupling | 450 |
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Bostwick | IN | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/2 x 1 3/4 | 5/16-18 x 1 3/4 couplingnut zinc | 954 |
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AFI | FL | Coupling Nut | Steel | Zinc/Clear | 5/16-18 x 1/2 x 7/8-1/2 | 5/16-18x7/8-1/2 coupling nut stz rohs () () | 900 |
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