#4x5/16" O.D., Thick Flat Washer, Steel, Case Hardened, Black Oxide, PK25

  • Item # 5RU40
  • My Part #
  • Mfr. Model # Z9085
  • Catalog Page # N/A
  • UNSPSC # 31161806
#4x5/16" O.D., Thick Flat Washer, Steel, Case Hardened, Black Oxide, PK25 close

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Web Price $8.03 / pkg. of 25
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  • Shipping Weight 0.03 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

Product Details

Thick Flat Washers have 2 flat surfaces that distribute the force/stress of a nut or bolt and also help to reduce friction and heat during the installation of a threaded fastener. The thick construction provides extra strength for tougher jobs. Stock up now and make sure you have plenty on-hand so you have the washers you need to keep your assembly operations running smoothly.

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Technical Specs

  • Item Thick Washer
  • Flat Washer Type Thick Flat Washer
  • Washer Basic Material Steel
  • System of Measurement Inch
  • Washer Material Grade Case Hardened
  • Fastener Finish Black Oxide
  • Fits Bolt Sizes #4
  • Washer Inside Dia. 1/8"
  • Washer Outside Dia. 5/16"
  • Thickness 5/64"
  • Thickness Tolerance +/-0.010"
  • Rockwell Hardness C40
  • Application Load Distributing
  • For Use With Die And Jig Fixture Setup
  • Washer Standards N/A
  • Package Quantity 25
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