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Hex Coupling Nuts (DIN 6334)
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.
144 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 | |
| Buy Hex Coupling Nuts from one of our FCH Network Members | ||||||||
| Jackson | MS | Coupling Nut | Steel | Zinc/Clear | M12-1.75 x 19 | M12x1.75 coupling nut 19 wafx36 long din 6334 | 140 |
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| Century | FL | Coupling Nut | Steel | Zinc/Clear | M6 | M6 coupling nut stl zinc din 6334 | 400 |
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| Endries | WI | Coupling Nut | Steel | Zinc/Clear | M10 | M10 coupling nut zinc din 6334 | 1395 |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M4 | m4 din 6334-s.s a2 coupling nuts | stock |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12-1.50 | m12-1.50 din 6334-s.s a2 coupling nuts | stock |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10-1.00 | m10-1.00 din 6334-s.s a2 coupling nuts | stock |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10-1.25 | m10-1.25 din 6334-s.s a2 coupling nuts | stock |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M4 | din 6334 coupling nuts | 9,150 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M6 | din 6334 coupling nuts | 33,880 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M12-1.25 | din 6334 coupling nuts | 3,871 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M10 | din 6334 coupling nuts | 6,410 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M12 | din 6334 coupling nuts | 927 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M8 | din 6334 coupling nuts | 6,427 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M10-1.25 | din 6334 coupling nuts | 6,182 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M5 | din 6334 coupling nuts | 9,845 |
|
| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M16 | din 6334 coupling nuts | 3,403 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M30 | din 6334 coupling nuts | 11 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M18 | din 6334 coupling nuts | stock |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12 | din 6334 coupling nuts | stock |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M5 | din 6334 coupling nuts | 1,200 |
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| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | din 6334 coupling nuts | 2,056 |
|
| MTP | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M8 | din 6334 coupling nuts | 925 |
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| MTP | CA | Coupling Nut | Steel | Zinc/Clear | M14 | din 6334 coupling nuts | 95 |
|
| Alma Bolt | MI | Coupling Nut | Steel | Plain | M5-0.80 | coupling nut din 6334 | 249 |
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| Alma Bolt | MI | Coupling Nut | Steel | Zinc/Clear | M6-1.00 | coupling nut din 6334 | 231 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M10 | coupling nut din 6334 | 2 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M12 | coupling nut din 6334 | 195 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M14 | coupling nut din 6334 | 65 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M16 | coupling nut din 6334 | 39 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M18 | coupling nut din 6334 | 87 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M20 | coupling nut din 6334 | 57 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M24 | coupling nut din 6334 | 19 |
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| METRO IND | OH | Coupling Nut | Steel | Plain | M6 | coupling nut din 6334 | 864 |
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| MidStates | MI | Coupling Nut | Steel | Plain | M10-1.50 | m10-1.5 coupling nut pln din 6334 | 300 |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M6 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M8 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M20 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M30 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M22 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M12 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M16 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M18 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M10 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M24 | din 6334 coupling nut | stock |
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| MTP | CA | Coupling Nut | Class 10.9 | Zinc/Clear | M14 | din 6334 coupling nut | stock |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M10-1.50 | coupling nut din 6334 class 8 zinc/clear | 2510 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M6-1.00 | coupling nut din 6334 class 8 zinc/clear | 10247 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M8-1.25 | coupling nut din 6334 class 8 zinc/clear | 11702 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M20-2.50 | coupling nut din 6334 class 8 zinc/clear | 517 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M12-1.75 | coupling nut din 6334 class 8 zinc/clear | 5847 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M30-3.50 | coupling nut din 6334 class 8 zinc/clear | 166 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M24-3.00 | coupling nut din 6334 class 8 zinc/clear | 80 |
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| MMCC | IL | Coupling Nut | Class 8.8 | Zinc/Clear | M16-2.00 | coupling nut din 6334 class 8 zinc/clear | 1261 |
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| MMCC | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10-1.50 | coupling nut din 6334 a2 s/s plain | 109 |
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| MMCC | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M8-1.25 | coupling nut din 6334 a2 s/s plain | 759 |
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| MMCC | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6-1.00 | m6x1 coupling nut din 6334 s/s a2 a2 s/s plain | 24 |
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| MMCC | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M12-1.75 | m12x1.75 coupling nut a4 12x1.75 din 6334 a4 s/s plain | 889 |
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| MMCC | IL | Coupling Nut | Class 10.9 | Zinc/Clear | M12-1.75 | m12x1.75 coupling nut-class 10-zinc-12x1.75 din 6334 zinc/clear | 211 |
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| MMCC | IL | Coupling Nut | Class 10.9 | Zinc/Clear | M10-1.50 | m10x1.5 coupling nut-class 10-zinc-10x1.5 din 6334 zinc/clear | 1090 |
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| MMCC | IL | Coupling Nut | Class 10.9 | Zinc/Clear | M6-1.00 | m6x1 coupling nut-class 10-zinc-6x1 din 6334 zinc/clear | 1734 |
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| MMCC | IL | Coupling Nut | Class 10.9 | Zinc/Clear | M8-1.25 | m8x1.25 coupling nut-class 10-zinc-8x1.25 din 6334 zinc/clear | 2687 |
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| MMCC | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M10-1.50 | m10x1.5 coupling nut-a4-10x1.5 din 6334 a4 s/s plain | 342 |
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| MMCC | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M6-1.00 | m6x1 coupling nut-a4-6x1 din 6334 a4 s/s plain | 2090 |
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| MMCC | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M8-1.25 | m8x1.25 coupling nut-a4-8x1.25 din 6334 a4 s/s plain | 2838 |
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| MMCC | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M5-0.80 | m5x.8 coupling nut-a4-5x.8 din 6334 a4 s/s plain | 1897 |
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| GUIDON | NJ | Coupling Nut | Steel | Black Oxide | M4 (.7) x 12 LG | hex coupling nut din 6334 | 730 |
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| QFC | TX | Coupling Nut | Steel | Zinc/Clear | M8-1.25 | M8-1.25 hex coupling nut zinc din 6334 | 800 |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M16-2.00 | M16-2.0 coupling nut zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10-1.50 | M10-1.5 coupling nut a-2 din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M10-1.50 | M10-1.5 coupling nuts zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M14-2.00 | M14-2.0 coupling nut zc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M12-1.75 | M12-1.75 coupling nut zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M5-0.80 | M5-0.8 coupling nut zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M16-2.00 | M16-2.0 coupling nut a-2 din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M4-0.70 | M4-0.7 coupling nut zc(x25) din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M8-1.25 | M8-1.25 coupling nut zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | Steel | Zinc/Clear | M6-1.00 | M6-1.0 coupling nut zinc din 6334 | stock |
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| MtrcSpec | CA | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6-1.00 | M6-1.0 coupling nut a2 din 6334 | stock |
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| Kanebridge | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6-1.0-25 x 10 | m6-1.0x25x10 din 6334 hex coupling nut a2 stainless steel | 12.500 |
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| Marine Fasteners | FL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12-1.75 | hex coupling nut a2 m12-1.75 din 6334 | 1915 |
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| Kanebridge | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6-1.0-18 x 10 | m6-1.0x18x10 din 6334 hex coupling nut a2 stainless steel | 12.500 |
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| Kanebridge | IL | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M5-0.8-15 x 8 | m5-0.8x15x8 din 6334 hex coupling nut a2 stainless steel | 25,000 |
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| Kanebridge | IL | Coupling Nut | 316, 317, A4 Stainless | Plain | M6-1.0-18 x 10 | m6-1.0x18x10 din 6334 hex coupling nut a4 stainless steel | 12.500 |
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| Eurolink | SC | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12 | M12 a2 18-8 304 steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M10 | M10 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M16 | M16 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M12 | M12 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Steel | Zinc/Clear | M6 | M6 zinc plated hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | M6 a2 18-8 304 steel hex nut height = 3xdiameter din 6334 | 100 |
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| Eurolink | SC | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M10 | M10 a2 18-8 304 steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Class 10.9 | Plain | M10 | M10 cl.10 plain finish hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Class 10.9 | Plain | M12 | M12 cl.10 plain finish hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M14 | M14 a2 18-8 304 steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | M20 a2 18-8 304 steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M8 | M8 a4 stainless steel hex nut height = 3xdiameter din 6334 | 600 |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M14 | M14 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Class 10.9 | Plain | M22 | M22 cl.10 plain finish hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Steel | Plain | M14 | M14 plain finish hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M6 | M6 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | Brass | Plain | M10 | M10 brass hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M20 | M20 a4 stainless steel hex nut height = 3xdiameter din 6334 | inquire |
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| Eurolink | SC | Coupling Nut | 316, 317, A4 Stainless | Plain | M5 | M5 a4 stainless steel hex nut height = 3xdiameter din 6334 | 180 |
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| Eurolink | SC | Coupling Nut | Class 10.9 | Plain | M36 | M36 cl.10 plain finish hex nut height = 3xdiameter din 6334 | inquire |
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| IRF | NJ | Coupling Nut | Steel | Zinc/Clear | M6-1.0-18 | longx10 wide coupling nut din 6334 | 500 |
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| IRF | NJ | Coupling Nut | Steel | Zinc/Clear | M6-1.0-18 | longx10 wide coupling nut din 6334 | 500 |
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| BHAM | AL | Coupling Nut | Steel | Plain | M6-1.0-18 | hex coupling nut din 6334 | 83 |
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| MSTC | MA | Coupling Nut | Steel | Zinc/Clear | M12 | m12 din 6334 hex coupling nut stl zn | 11 |
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| MSTC | MA | Coupling Nut | Steel | Zinc/Clear | M10 | m10 din 6334 hex coupling nut stl zn | 17 |
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| MSTC | MA | Coupling Nut | Steel | Zinc/Clear | M6 | m6 din 6334 hex coupling nut stl zn | 76 |
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| MSTC | MA | Coupling Nut | Steel | Zinc/Clear | M8 | m8 din 6334 hex coupling nut stl zn | 84 |
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| BAYFASTCO | FL | Coupling Nut | Steel | Plain | M8-24 | m8 x 24 coupling nut din 6334 | 10 |
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| BAYFASTCO | FL | Coupling Nut | Steel | Plain | M5-15 | m5 x 15 coupling nut din 6334 | 60 |
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| BAYFASTCO | FL | Coupling Nut | Steel | Plain | M10-30 | m10 x 30 coupling nut din 6334 | 14 |
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| ASFCORP | MI | Coupling Nut | Class 4.8 | Zinc/Clear | M16-2-48 x 4 | m16-2 x 48 hex coupling nut cl 4 din 6334 tri zn fe/zn 5an pkg | 8 |
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| WSB | KY | Coupling Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M12-1.75 x 36 | nut hex coupling din 6334 a2 m12x1.75x36 | 150 |
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