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5/16 inx7/8 in O.D., USS Type A Wide Flat Washer, Steel, Through Hardened, Zinc Yellow, PK50

  • Item # 6PE78
  • My Part #
  • Mfr. Model # HU-0312USSHZYBAGGR
  • Catalog Page # 2090
  • UNSPSC # 31161807
5/16 inx7/8 in O.D., USS Type A Wide Flat Washer, Steel, Through Hardened, Zinc Yellow, PK50 close
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Primary Category:
~Fasteners~Washers~Flat Washers


$9.10 / pkg. of 50
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  • Shipping Weight 0.5 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More
  • This item is manufactured or supplied by a small, minority, woman, veteran or disadvantaged business.

Product Details

These Through-Hardened Steel Flat, Round Washers can be used with Grade 8 fasteners and feature 2 smooth, hard, flat surfaces for distributing the force/stress of a nut or bolt. They also help to reduce friction and heat during the installation of a threaded fastener.

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Technical Specs

  • Item USS Washer
  • Flat Washer Type USS Type A Wide Flat Washer
  • Washer Basic Material Steel
  • System of Measurement Inch
  • Washer Material Grade Through Hardened
  • Fastener Finish Zinc Yellow
  • Fits Bolt Sizes 5/16 in
  • Washer Inside Dia. 3/8 in
  • Washer Outside Dia. 7/8 in
  • Thickness 0.136 in to 0.192 in
  • Rockwell Hardness RC38 to RC45
  • Application Load Distributing
  • For Use With Grade 8 Fastener
  • Washer Standards ASME B18.221 and ASTM F436
  • Package Quantity 50
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