ASTM A194 Grades[ AREAS-961 ]
The ASTM A194 Grade 2H specification covers carbon, alloy, and stainless steel nuts intended for use in high-pressure and/or high-temperature service. Unless otherwise specified, the American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be used. Nuts up to and including 1-inch nominal size shall be UNC Series Class 2B fit. Nuts over 1-inch nominal size shall be either UNC Series Class 2B fit or 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the marketplace and are often substituted forASTM A563 grade DHnuts due to the limited availability of DH nuts in certain diameters and finishes.
ASTM A194 Grade 2H
|2H||Carbon steel Hex Nut, Heavy hex nut|
ASTM A194 Grade 2H Chemical properties
ASTM A194 Grade 2H Hardness properties Inch Product