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M20 Jam Nuts (DIN 439b)
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.
33 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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| 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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| 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 | 2000 |
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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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| 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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| 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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| 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 | 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 | M20-1.50 | 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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| MMCC | IL | Hex Jam Nut | Steel | Zinc/Yellow | M20-2.50 | m20x2.5 hex jam nut class 05 zinc yellow din 439b | inquire |
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| MMCC | IL | Hex Jam Nut | Class 4.8 | Zinc/Clear | M20-1.50 | m20x1.5 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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| 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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| BHAM | AL | Hex Jam Nut | Steel | Plain | M20-2.50 | hex fin jam nut din 439b | 22 |
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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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