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M3 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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
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American WIHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3-0.50m3-.5 hex jam nut ss din 439b-a2a21430
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Alma BoltMIHex Jam NutSteelPlainM3-0.50jam hex nut din 439b475
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Alma BoltMIHex Jam NutSteelZinc/ClearM3-0.50din 439b jam hex nut300
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EndriesWIHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3m3 a2 stainless hex jam nut din 439b200
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MMCCILHex Jam NutClass 4.8PlainM3-0.50hex jam nut din 439b class 4 plain6498
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MMCCILHex Jam NutBrassPlainM3-0.50hex jam nut din 439b brass plain73
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3-0.50hex jam nut din 439b a2 s/s plain6818
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MMCCILHex Jam Nut316, 317, A4 StainlessPlainM3-0.50m3x.5 hex jam nut din 439b a4 s/sinquire
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MSTCMAHex Jam NutClass 4.8PlainM3m3 din 439b hex jam nut cl4 stl pl1422
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MSTCMAHex Jam NutClass 4.8Zinc/YellowM3m3 din 439b hex jam nut cl4 stl z/yl2500
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MSTCMAHex Jam NutBrassPlainM3m3 din 439b hex jam nuts brass250
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