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

  • Item # 6YPH3
  • My Part #
  • Mfr. Model # 513031G
  • 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


$4.90 / pkg. of 50
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  • Shipping Weight 0.55 lbs.
Country of Origin Varies 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
  • WARNING This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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 0.083 in
  • Thickness Tolerance +.021/-.019
  • Rockwell Hardness C38 to C45
  • Application Smooth Hard Surface for Distributing Bolt Load
  • For Use With Nuts and Bolts
  • Washer Standards ASME B18.221 and ASTM F436
  • Package Weight 0.48
  • Package Quantity 50
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Compliance and Restrictions

  • WARNING This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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