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M12 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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GLFOHHex Jam NutSteelZinc/ClearM12-1.50M12-1.5 fin hex jam nut stl zc din 439b () () ()76
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GLFOHHex Jam NutSteelZinc/ClearM12-1.75M12-1.75 fin hex jam nut stl zc din 439b () () ()50499
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CenturyFLHex Jam NutSteelPlainM12-1.00M12.0x1.0 hex jam nut fine thread stl zi bn1207 eaton pn 15-2628 din 439b 500
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CenturyFLHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12M12 s/s nut pl hex din 439b 80
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Irwin IndOntHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12din 439b thin hex m12 18-8 ss500
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ASMCILHex Jam NutClass 4.8Zinc/ClearM12-1.75 x 4M12x1.75 coarse cl4 hex jam nut low carb zp din 439b661
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EndriesWIHex Jam NutClass 4.8Zinc/YellowM12M12 class 4 hex jam nut hex chromium free 96 hr salt spray zinc yellow patch din 439b4000
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ManscoMIHex Jam NutSteelZinc/ClearM12-1.25m12-1.25 fin hex jam nut triv znc din 439b4800
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Alma BoltMIHex Jam NutSteelPlainM12-1.75jam hex nut din 439b318
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SWACOOHHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.00M12-1.0 hex nut a2 ss din 439b425
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EmpireWAHex Jam NutSteelZinc/ClearM12-1.25M12 (1.25) nf hex jam nut zp din 439b696
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IPCVAHex Jam NutSteelZinc/ClearM12-1.75-04M12-1.75 hex jam nuts cl 04 steel cr3 zinc-rohs din 439b8,575
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75hex jam nut a2 nylok 12x1.75 din 439b a2 s/s nylok patchinquire
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MMCCILHex Jam NutClass 4.8PlainM12-1.50hex jam nut din 439b class 4 plain967
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MMCCILHex Jam NutClass 4.8PlainM12-1.75hex jam nut din 439b class 4 plain39554
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MMCCILHex Jam NutClass 4.8PlainM12-1.25hex jam nut din 439b class 4 plain16506
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MMCCILHex Jam NutClass 4.8PlainM12-1.50hex jam nut din 439b class 4 left hand2
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MMCCILHex Jam NutClass 4.8PlainM12-1.75hex jam nut din 439b class 4 left hand5354
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MMCCILHex Jam NutClass 4.8Zinc/ClearM12-1.75hex jam nut din 439b class 4 zinc/clear35380
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MMCCILHex Jam NutClass 4.8Zinc/ClearM12-1.25hex jam nut din 439b class 4 zinc/clear11368
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MMCCILHex Jam NutClass 4.8Zinc/ClearM12-1.00hex jam nut din 439b class 4 zinc/clear150
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MMCCILHex Jam NutClass 4.8Zinc/ClearM12-1.50hex jam nut din 439b class 4 zinc/clear3573
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MMCCILHex Jam NutBrassPlainM12-1.75hex jam nut din 439b brass plain24356
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.25hex jam nut din 439b a2 s/s plain5852
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75hex jam nut din 439b a2 s/s plain2108
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.50hex jam nut din 439b a2 s/s plain6378
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MMCCILHex Jam Nut316, 317, A4 StainlessPlainM12-1.75hex jam nut din 439b a4 s/s plaininquire
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.75hex jam nut a2 12x1.75 left hand hand din 439b a2 s/s437
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MMCCILHex Jam NutClass 8.8PlainM12-1.25m12x1.25 hex jam nut class 8 left hand din 439binquire
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MMCCILHex Jam Nut316, 317, A4 StainlessPlainM12-1.00m12x1 hex jam nut a4 din 439binquire
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MMCCILHex Jam NutClass 4.8PlainM12-1.25m12x1.25 hex jam nut class 04 left hand din 439binquire
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MMCCILHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12-1.00m12x1 hex jam nut a2 din 439binquire
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FTSOHHex Jam NutClass 4.8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M12-1.75fin hex jam nut 4 geomet din 439b172
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FTSOHHex Jam NutClass 4.8Zinc/ClearM12-1.25fin hex jam nut 4 zn din 439b1231
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HodellOHHex Jam NutSteelZinc/ClearM12-1.75M12-1.75 hex jam nut tri zn clr din 439b600
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HodellOHHex Jam NutSteelZinc/ClearM12-1.75M12-1.75 hex jam nut tri zn clr din 439b600
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PENCOMOntHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12m12 hex jam nut stainless din 439b300
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MSTCMAHex Jam Nut316, 317, A4 StainlessPlainM12m12 din 439b hex jam nuts a4ss147
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MSTCMAHex Jam NutClass 4.8Zinc/ClearM12-1.00m12x1.0 din 439b hex jam nut cl4 stl zn26
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MSTCMAHex Jam NutClass 4.8Zinc/ClearM12-1.25m12x1.25 din 439b hex jam nut cl4 stl zn907
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MSTCMAHex Jam NutBrassPlainM12m12 din 439b hex jam nuts brass51
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MSTCMAHex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM12m12 din 439b hex jam nuts a2ss1087
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