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Grade 8 USS Flat Washer - Yellow Zinc

Grade 8 Steel Yellow Zinc USS Flat Washers. Grade 8 flat washers have tighter tolerances on thickness and are manufactured from a stronger grade of steel, they are also heat treated. They are used between the bearing surface of the fastener and the part for which you are installing the bolt to be attached.  Washers improve the stress distribution.  USS washers meet the majority of industrial applications, in maintenance, repair and manufacturing.

Bolt Size: Inside Diameter: Outside Diameter: Thickness
1/4" .307/.327 .727/.749 .051/.08
5/16" .370/.390 .868/.905 .064/.104
3/8" .433/.453 .993/1.03 .064/.104
7/16" .495/.515 1.243/1.28 .064/.104
1/2" .557/.577 1.368/1.405 .086/.132
5/8" .649/.687 1.743/1.780 .108/.16
3/4" .805/.842 1.993/2.03 .122/.177
7/8" .931/.968 2.243/2.28 .136/.192
1" 1.055/1.092 2.493/2.53 .136/.192
1 1/4" 1.368/1.405 2.993/3.03 .136/.192
Country of Origin varies; Country of Origin is subject to change
If plating is important please send an inquiry


Length/Size Price/10 Qty
1/4'' $ 0.80
5/16" $ 1.20
3/8" $ 1.30
7/16" $ 2.60
1/2" $ 3.30
5/8" $ 7.60
3/4" $ 10.00
7/8" $ 8.80
1" $ 10.00
1 1/4" $ 17.00
Length/Size Price/Pkg Qty Qty
1/4'' $ 6.00 100
5/16" $ 9.00 100
3/8" $ 10.00 100
7/16" $ 10.00 50
1/2" $ 12.50 50
5/8" $ 14.25 25
3/4" $ 15.20 20
7/8" $ 10.80 15
1" $ 12.30 15
1 1/4" $ 21.00 15
Length/Size Price/Case Qty Qty