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Specification: ASTM A 194/A 194M
-Carbon and Alloy Steel Nuts for Bolts for High pressure or High Temperature Service, or Both
Dimensions: ANSI B 18.2.2 and ANSI B 18.2.4.6M
Size: 1/2" - 4"
Grade: 2H,2HM,4,7,7M,etc.
Material: 45#, 40Cr, 42CrMo(B7), etc.
Finish: Plain, Black, Zinc, H.D.G., etc.
Heavy hex nuts and heavy hex jam nuts