The standard flatwasher used in the tool and die industry. These flatwashers are thicker than standard washers. Depending on the size, they are stamped or machined. Low carbon steel, commercial case hard, black oxide plated.
Technical Specs
ItemThick Washer
MaterialSteel
FinishBlack Oxide
Inside Diameter0.281 in
Maximum Thickness0.125 in
Minimum Thickness0.125 in
Inside Diameter Tolerance+/-0.010 in
Rockwell HardnessC4
Flat Washer TypeStandard
Material Grade/ClassGrade 5
For Screw Size1/4 in
Outside Diameter5/8 in
System of MeasurementInch
ColourBlack
Outside Diameter Tolerance+/-0.010 in
Thickness Tolerance+0.005 in/-0.004 in
Country of OriginUnited States
(subject to change)