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USS Flat Washer: Steel, Zinc Plated, Low Carbon Material Grade, For 1/2 in Screw Size, 0.563 in ID, 1.375 in OD, 1300 PK

Item # 720U606

$169.73 Pack of 1,300

Product Specs

Finish: Zinc Plated
Material: Steel
For Screw Size: 1/2 in
ID: 0.563 in
OD: 1.375 in
Thickness: 0.110 in
Type: USS
System of Measurement: Imperial
Shape: Round
For Use With: Screws; Studs
Material Grade: Low Carbon
Rockwell Hardness: B49

Compliance and Restrictions

Country Of Origin

  • Varies

About Flat Washers

The most common washer style, flat washers install between the fastened material's surface and a nut or bolt head to help distribute the load or reduce friction.

USS washers have a larger outside diameter and thicker gauge than SAE washers for industrial use.