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125939050436
1/2" Hardened Flat Washer, Black Zinc ASTM F-436

  • ASTM F 436
  • F436 Material Grade are hardened flat washers which have a Rockwell Hardness value ranging between 38 to 45 HRC. These washers can either have a plain finish or can be hot dipped galvanized. The hardened flat ASTM F436 Washer is used under bolt nuts and head in order to increase the bearing area.
Product Specifications
Screw Dia. 1/2"
Inside Dia. .531"
Outside Dia. 1.062"
Thickness .097/.177"