Heavy Hex Jam Nuts , 300 Stainless (A1,A2, 18-8,304,310 etc.)

Heavy Hex Jam Nuts are thinner than regular heavy hex nuts, but have similar dimensions across the flats and corners. Like regular hex jam nuts, heavy hex jam nuts can be threaded onto a bolt and run tight against the standard heavy hex nut which will lock the nut in place and prevent it from backing off. 

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
B & K FASTPAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex jam nuts stainless t304 b18.2.22
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YANKEENHHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex jam nut stainless steel435
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YANKEENHHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-245/16-24 heavy hex jam nut stainless steel101
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TSFTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-12heavy hex jam nut ss 9/16-126
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ACFCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 s/s heavy hex jam nuts300
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 1/85/16-18 heavy hex jam nut 1/8 thk 18-8ss3100
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex jam nut 18-8ss100
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 heavy hex jam nut 18-8ss75
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 heavy hex jam nut 18-8ss164
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy hex jam nut 18-8ss346
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-243/8-24 heavy hex jam nut 18-8 ss39
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HayesCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-245/16-24 heavy hex jam nut 18-8ss128
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NutsBoltsNEHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 ss hvy hex jam nut
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JacksonMSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16nc heavy jam nut 18-8 s/s128
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JacksonMSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16nc heavy jam nut 18-8 s/s105
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Future FastenerTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 heavy hex jam nut ss5
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Future FastenerTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy hex jam nut ss52
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JacksonMSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 jam flex lock nut 18-8 304 heavy pattern.388 tallx.999 waf436
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JacksonMSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24nf heavy jam nut 18-8 s/s630
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ACFCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-103/4-10 s/s heavy hex jam nut50
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BrikksenFLHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 heavy hex jam nut ss166940
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BrikksenFLHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 heavy hex jam nut ss60500
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Ace Bolt MSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 nc heavy jam nylon l/n {ntu} 18-8 ss500
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ACFCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-245/16-24 s/s heavy hex jam nut176
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CertifiedILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 hvy hex jam nut/18-8ss b18.2.2546
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DeltaTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13hvy hex jam nut 18-8 sst 1/2-13199
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DeltaTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11hvy hex jam nylon l/n 18-8 sst 5/8-11200
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DeltaTXHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hvy hex jam nylon l/n 18-8 sst 3/8-16100
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 3/4-51-3/4-5 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-131/2-13 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-97/8-9 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/8-71-1/8-7 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/2-61-1/2-6 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1-81-8 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-103/4-10 heavy jam nut 18-8 stainless steel b18.2.2inquire
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StandardMAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 heavy jam nut 18-8 stainless steel b18.2.2inquire
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OlanderCAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-185/16-18 hvy hx jam nut sst rohs50
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MidStatesMIHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-12heavy hex jam nut 18-89
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THRDFASTALHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-1818-8 ss heavy hex jam nut b18.2.297
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THRDFASTALHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-2018-8 ss heavy hex jam nut b18.2.2187
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THRDFASTFLHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-1618-8 ss heavy hex jam nut b18.2.215
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THRDFASTALHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-1018-8 ss heavy hex jam nut b18.2.278
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LibertyILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1-14heavy hex jam nut 18-8 s/s stainless13
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LibertyILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16heavy hex jam nut 18-8 s/s stainless26
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LibertyILHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18heavy jam nylon insert locknut 18-8 s/s5
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HewesNYHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20hvy ela jam/purplenut 18-8 s/s144
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MFSKSHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#5/16-24heavy hex jam nut204
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AFIFLHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/18-185/18-18 heavy hex jam nut ss5000
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GLFOHHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10hvy hex jam nut 18-8 s/s nut36
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KomarMOHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20hex heavy jam nut(1/2x11/64) 18-8 ss674
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 3/4-5heavy jam nut 18-8 ss25
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10heavy jam nut 18-8 ss12
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/4-7heavy jam nut 18-8 ss25
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/8-7heavy jam nut 18-8 ss17
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1-8heavy jam nut 18-8 ss20
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SeattleNBWAHeavy Hex Jam Nut300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/2-6heavy jam nut 18-8 ss25
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