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M20 Jam Nuts
Hex Jam Nuts have a lower profile than a standard hex nut but have the same dimension across the flats and corners. A hex jam nut can be threaded onto a bolt and run tight against a standard nut which will lock the nut in place and prevent it from backing off. Thus hex jam nuts may sometimes be used as locking nuts.
154 results, (click on any line for more information)
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Buy Jam Nuts from one of our FCH Network Members | ||||||||
| GLF | OH | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | M20-2.5 fin hex jam nut stl zc din 439b () () () | 10 |
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| Century | FL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | M20.0 18-8 hex jam nuts din 439 () | 242 |
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| Jackson | MS | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | m20 x 1.50 fine pitch metric hex jam nut zinc | 4 |
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| Future Fastener | TX | Hex Jam Nut | Steel | Galvanized | M20 | m20 finished hex jam nut hot dip galvanized | 45 |
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| Future Fastener | TX | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 fin. jam nut ss | 50 |
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| Jackson | MS | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 x 439 10 | M20x2.50 hex jam nut 439-b 10 thickx30 waf | 189 |
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| BHAM | AL | Hex Jam Nut | Steel | Plain | M20-2.50 | M20-2.5 hex jam nut din 439 | 50 |
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| Endries | WI | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 a2 stainless hex jam nut din 439b | 575 |
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| YANKEE | NH | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | m20(2.5) hex fin jam nut zinc pltd | 26 |
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| Jay-Cee | MI | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | M20-1.50 steel zinc l.h. jam nut din 439b | inquire |
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| Endries | WI | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | M20x1.5 class 4 hex jam nut trivalent clear zinc din 439b | 6531 |
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| Fastener | OH | Hex Jam Nut | Steel | Zinc/Yellow | M20-1.5-439 | hex jam nut m20-1.5 439b fine thread zinc yellow | 230 |
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| Wurth Ind | IN | Hex Jam Nut | Steel | Zinc/Yellow | M20 | hex nut b 04 ws30 a2c m20 steel zinc/yellow din 439 | 434 |
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| SWACO | OH | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | M20-1.5 hex jam nut zinc | 29 |
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| WINA | MN | Hex Jam Nut | Aluminum | Zinc/Yellow | M20 | hex nut b 04 ws30 a2c m20 din 439 | 434 |
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| Mansco | MI | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | fin hex jam nut triv znc din 439b | 340 |
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| Eurolink | SC | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 iso 4035 a2 stainless steel hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | m20-1.5 din 439 l.h. thread cl. 04 plain finish hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20 | m20 din 439 a4 stainless steel hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | m20-1.5 din 439-b l.h. thread a4 stainless steel hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20 | m20 din 439 cl. 04 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Steel | Zinc/Clear | M20-0.05 | m20 din 439 cl.05 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Galvanized | M20 | m20 iso 4035 cl. 04 hot dip galvanized hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Galvanized | M20 | m20 din 439-b cl.04 hot dip galvanized hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | m20-1.5 din 439 cl. 04 plain finished hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | m20-1.5 din 439 a4 stainless steel hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20 | m20 din 439 l.h. thread cl.04 zinc hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20 | m20 iso 4035 cl. 04 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Steel | Zinc/Clear | M20 | m20 iso 4035 cl. 05 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | m20-1.5 din 439 cl. 04 plain finish fine thread hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20-1.5 din 439 l.h. thread cl.04 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Steel | Zinc/Clear | M20-17 | m20 din 936 17h zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20-1.5 iso 8675 cl.04 zinc plated hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-2.00 | M20-2.0 cl.04 plain finish fine thread hex nut with chamfer iso 8675 | inquire |
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| Eurolink | SC | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | M20-1.5 a2 18-8 304 steel hex thin nut iso 8675 | inquire |
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| Eurolink | SC | Hex Jam Nut | Steel | Zinc/Clear | M20-2.0-.05 | M20-2.0 cl.05 zinc plated fine thread hex nut with chamfer iso 8675 | inquire |
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| Ababa | CA | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-2.50 | m20-2.5 fin jam h/n class 4 stl znc | 33 |
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| Ababa | CA | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20-1.5 fin jam h/n class 4 stl znc | 27 |
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| CIF | IL | Hex Jam Nut | Class 10.9 | Plain | M20-2.50 | M20x2.5 hex jam nut class 10 plain (111) (111) (111) () | 111 |
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| CIF | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | M20x1.5 hex jam nut 18-8ss (400) () | 400 |
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| ASMC | IL | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-2.50 | coarse / iso 4035 cl4 hex jam nut low carb zp din 439b | 20 |
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| MTP | CA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 din 439-s.s a2 hex jam nuts (l.h.) | 340 |
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| MTP | CA | Hex Jam Nut | Class 4.8 | Plain | M20 | M20 pln hex jam nuts (l.h.) din 439-4 | 228 |
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| MTP | CA | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | M20-1.50 pln hex jam nuts (l.h.) din 439-4 | 188 |
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| MTP | CA | Hex Jam Nut | Steel | Zinc/Clear | M20 | m20 din 439-4 zn hex jam nuts | 12,688 |
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| MTP | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.00 | m20-1.00 din 439-4 zn hex jam nuts | stock |
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| MTP | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | m20-1.50 din 439-4 zn hex jam nuts | 7,803 |
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| MTP | CA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 din 439-a2-70 s.s hex jam nuts | 349 |
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| MTP | CA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | m20-1.50 din 439-s.s a2 fine/th jam nut | 200 |
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| MTP | CA | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | m20-1.50 din 439-a4 s.s hex jam nuts | 150 |
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| MTP | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | m20-1.50 din 936-17h zn hex jamnuts fine | 2,600 |
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| MTP | CA | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20 | m20 din 439-a4 s.s jam nuts | 200 |
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| ACCURATE | IL | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | hex jam nut class 4 | 3 |
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| Liberty | IL | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | hex jam nut class 4 plate din 439b | 39 |
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| Alma Bolt | MI | Hex Jam Nut | Steel | Plain | M20-2.50 | m20 x 2.5 din 439b jam hex nut | 254 |
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| METRO IND | OH | Hex Jam Nut | Steel | Plain | M20-1.50 | hex jam nut din 439 | 10 |
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| METRO IND | OH | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | hex jam nut s/s din 439 | 17 |
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| Cal Fastenrs | CA | Hex Jam Nut | Steel | Plain | M20-2.50 | M20-2.5 hex fin jam nut plain | 2,250 |
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| Global | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | hex jam nut | 355 |
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| IRF | NJ | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | M20-2.50 | hex fin jam nut a2 ss din 439 | 500 |
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| Empire | WA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | m20 (1.5) hex jam nuts zp | 10 |
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| Empire | WA | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | m20 (2.5) hex jam nuts zp | 58 |
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| MidStates | MI | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-2.50 | hex jam nut 316 s/s | 35 |
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| Hodell | OH | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | M20x1.50 hex jam nut class 4 din 439b | 3500 |
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| MTP | CA | Hex Jam Nut | Steel | Plain | M20 | m20 din 439-4 pln hex jam nuts (l.h.) | 228 |
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| MTP | CA | Hex Jam Nut | Steel | Plain | M20-1.50 | m20-1.50 din 439-4 pln hex jam nuts (l.h.) | 188 |
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| Northern | MN | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | m20-2.5 hex jam nut zinc din 439 | 1 |
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| Delta | TX | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | hx jam nut zinc m20-2.5 | 88 |
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| Delta | TX | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | metric hex jam nut a2 sst m20-1.5 (FINE THREAD) | 70 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Plain | M20-2.50 | hex jam nut din 439b class 4 plain | 5456 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | hex jam nut din 439b class 4 plain | 2837 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Plain | M20-2.00 | hex jam nut din 439b class 4 plain | 176 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Plain | M20-2.50 | hex jam nut din 439b class 4 left hand | 622 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-2.50 | hex jam nut din 439b class 4 zinc/clear | 59912 |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | hex jam nut din 439b class 4 zinc/clear | 5333 |
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| MMCC | IL | Hex Jam Nut | Steel | Plain | M20-2.50 | low hex nut-17h/04-plain-20x2.5 din 936 | 961 |
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| MMCC | IL | Hex Jam Nut | Steel | Plain | M20-1.50 | low hex nut-17h/04-plain-20x1.5 din 936 | 437 |
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| MMCC | IL | Hex Jam Nut | Brass | Plain | M20-2.50 | hex jam nut din 439b brass plain | 3 |
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| MMCC | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | hex jam nut din 439b a2 s/s plain | 156 |
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| MMCC | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | hex jam nut din 439b a2 s/s plain | 1235 |
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| MMCC | IL | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-2.50 | hex jam nut din 439b a4 s/s plain | 3 |
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| MMCC | IL | Hex Jam Nut | Steel | Plain | M20-2.00 | m20x2 low hex nut 17h/04 plain din 936 | 180 |
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| MMCC | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | m20x2.5 low hex nut din 936 a2 s/s | inquire |
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| MMCC | IL | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-2.50 | m20x2.5 low hex nut din 936 a4 s/s | 65 |
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| MMCC | IL | Hex Jam Nut | Brass | Plain | M20-2.50 | m20x2.5 low hex nut brass din 936 | 81 |
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| MMCC | IL | Hex Jam Nut | Steel | Plain | M20-1.50 | m20x1.5 hex jam nut left hand din 439b | inquire |
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| MMCC | IL | Hex Jam Nut | Steel | Plain | M20-2.50 | m20x2.5 hex jam nut class 05 plain din 439b | inquire |
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| MMCC | IL | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | m20x1.5 hex jam nut a4 din 439b | inquire |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-2.50 | m20x2.5 hex jam nut class 04 zinc plate din 439b left hand | inquire |
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| FTS | OH | Hex Jam Nut | Class 4.8 | Plain | M20-2.50 | fin hex jam nut 4 din 439b | 17 |
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| FTS | OH | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-2.50 | fin hex jam nut 4 zn din 439b | 96 |
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| FTS | OH | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | fin hex jam nut 4 din 439b | 20 |
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| FTS | OH | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | fin hex jam nut 4 zn din 439b | 1204 |
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| Hodell | OH | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | M20x1.50 lh jam nut class 4 fine black/dry (tested) din 439b | 736 |
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| MtrcSpec | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | M20-1.5 hex jam nut zinc din 439 | stock |
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| MtrcSpec | CA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | M20-2.5 hex jam nut a2-ss din 439 | stock |
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| MtrcSpec | CA | Hex Jam Nut | Steel | Plain | M20-1.50 | M20-1.5 hex jam nut din 439 | stock |
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| MtrcSpec | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | M20-2.5 hex jam nut zinc din 439 | stock |
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| All-Ways | IL | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | hex jam nut din 439 316ss | 5 |
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| All-Ways | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-1.50 | hex jam nut din 439 | 24 |
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| All-Ways | IL | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | hex jam nut din 439 | 88 |
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| B & K FAST | PA | Hex Jam Nut | Class 8.8 | Zinc/Clear | M20-1.50 | m20-1.50 hex jam nuts cl 8 din 936 zinc | 8 |
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| B & K FAST | PA | Hex Jam Nut | Class 8.8 | Zinc/Clear | M20-2.50 | m20-2.50 hex jam nuts zinc cl 8 din 936 zinc | 301 |
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| IRF | NJ | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | hex fin jam nut a2 ss din 439 | 40 |
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| Kanebridge | IL | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | m20-2.5 din 439 hex jam nut a2 stainless steel | 8.750 |
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| PENCOM | Ont | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20 | m20 hex jam nut class 4 zinc din 439-2 | 300 |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.00 | m20-1.0 din 439 cl. 04 zinc plated extra fine thread hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | 316, 317, A4 Stainless | Plain | M20-1.50 | m20-1.5 din 439 a4 stainless steel hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20-1.5 din 439 cl. 04 zinc plated fine thread hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-1.00 | m20-1.0 din 439 cl. 04 plain finish extra fine thread hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Plain | M20-1.50 | m20-1.5 din 439 l.h. thread cl.04 plain finish hex jam nut | inquire |
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| Eurolink | SC | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20-1.5 din 439 cl. 04 zinc plated hex jam nut | inquire |
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| BHAM | AL | Hex Jam Nut | Steel | Plain | M20-2.50 | hex fin jam nut din 439b | 22 |
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| Bostwick | IN | Hex Jam Nut | Class 10.9 | Zinc/Yellow | M20-1.50 | m20-1.50 jam nut 10.9 yellow zinc | 25 |
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| MSTC | MA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | m20 din 439b hex jam nuts a2ss | 12 |
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| MSTC | MA | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20 | m20 din 439b hex jam nut cl4 stl zn | 113 |
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| ZAL INDUS | CA | Hex Jam Nut | Steel | Black Oxide | M20-2.50 | m20-2.5 hex fin jam nut bl/ox | 3,045 |
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| ZAL INDUS | CA | Hex Jam Nut | Steel | Plain | M20-2.50 | m20-2.5 hex fin jam nut | 1,600 |
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| ZAL INDUS | CA | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | m20-2.5 hex fin jam nut pltd | 599 |
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| FastWare | Sask | Hex Jam Nut | Class 4.8 | Plain | M20-1.50-/6 | M20-1.50 hex jam nut class 4/6 din 936 | 90 |
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| SRF | AL | Hex Jam Nut | Steel | Plain | M20-2.50 | hex fin jam nut | - |
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| SRF | AL | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | hex fin jam nut | - |
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| Wurth | Ont | Hex Jam Nut | Steel | Plain | M20 | nut hex din439 b 04 ws30 m20 | 100 |
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| Wurth | Ont | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20 | nut hex din439 b a2 ws30 m20 | 50 |
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| CNB | IL | Hex Jam Nut | Grade 2 | Plain | M20-2.50 | hex jam nut gr.2 | 128 |
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| API | IA | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50-05 | hex jam nut m20x2.5 cl05 zncl iso 4035 | 1,763 |
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| OBRIEN | OH | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | hex jam nut | 50 |
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| THRDFAST | FL | Hex Jam Nut | Steel | Galvanized | M20-2.50 | hex jam nut hdg | 6 |
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| THRDFAST | AL | Hex Jam Nut | Steel | Plain | M20-2.50 | hex jam nut | 11 |
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| Wurth Ind | D.F. | Hex Jam Nut | Steel | Zinc/Clear | M20-2.50 | m20-2.5 hex jam nut zn | 51 |
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| Valley Nu | WA | Hex Jam Nut | Steel | Zinc/Black | M20-2.50 | hex jam nut zb | 18 |
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| Lightning | LA | Hex Jam Nut | Steel | Plain | M20-2.50 | hex jam nut | 115 |
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| Lightning | LA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | jam nut a-2 ss din 439 | 10 |
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| Lightning | LA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | hex jam nut fine | 101 |
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| Lightning | LA | Hex Jam Nut | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M20-2.50 | jam nut a-2 ss din 439 | 10 |
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| Lightning | LA | Hex Jam Nut | Steel | Zinc/Clear | M20-1.50 | hex jam nut fine fine thread | 101 |
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| Lightning | LA | Hex Jam Nut | Steel | Plain | M20-2.50 | hex jam nut /iso 4035 din 439 | 115 |
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