Liberty Fastener-A Supplier of Fastener Products. 31WUSSTH , Extra Thick USS Heavy Duty Thru-Hard Washers

31WUSSTH , Extra Thick USS Heavy Duty Thru-Hard Washers

Diameters to ASME B18.22.1 specifications & a hardness of HRC 38-45
Hardness: Rockwell C38 - 45
Steel mechanically zinc yellow plated & baked after plating

Free manufacture's certification available

Products specifications

Size	5/16 in
Weight Lbs/M	11.90
Plating	Steel Mechanically Zinc
Hardness	Rockwell C38-45