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Thru Hardened Carbon Steel Plain Medium (Regular) Split Lock Washers

Thru Hardened Carbon Steel Plain Medium (Regular) Split Lock Washers
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Product Detailed Description

1/4" Thru Hardened Carbon Steel Plain Medium (Regular) Split Lock Washers

  • .260-.252 Inside Diameter
  • .487 Outside Diameter
  • .062 Thickness
  • .109 Width
  • Description: Regular: A coiled, hardened, split circular washer with a slightly trapezoidal wire section.
  • Applications/ Advantages: Regular: (A) Applies greater bolt tension per unit of applied torque; (B) Provides a hardened bearing surface, creating more uniform torque control; (C) Provides more uniform load distribution; (D) Resists loosening caused by vibration and corrosion; (E) Is preferred lock washer for use with hardened bearing surfaces.
  • Material: Carbon Steel: SAE J403 1055 - 1065 carbon steel.
  • Hardness: Carbon & High-Alloy Steel: Rockwell C38 - 46
  • Twist Test: With the washer in a vice with the split ends free and straight above the vice jaws, a 90°segment of the free end is gripped with a wrench and bent. Washers are to withstand being twisted through a 90° angle without signs of fracture. When the washer ultimately fractures beyond the prescribed 90° limit, the structure at the breaking point shall show a fine grain.

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