Perfect for use with Grade 8 capscrews and socket capscrews. Each washer is marked with the bolt size for easy identification. These washers are thicker than even the F436 series. Medium carbon steel thru hardened to Rockwell C43-49 mechanical zinc yellow
Technical Specs
ItemThick Washer
Dimensional StandardsAMPG 2001 FL.06
Material Grade/ClassGrade 8
For Screw Size5/16 in
Outside Diameter11/16 in
System of MeasurementInch
ColourYellow
Outside Diameter Tolerance+/-0.010 in
Thickness Tolerance+0.005 in/-0.004 in
Flat Washer TypeStandard
MaterialSteel
FinishZinc Yellow
Inside Diameter0.344 in
Maximum Thickness0.108 in
Minimum Thickness0.09 in
Inside Diameter Tolerance+/-0.010 in
Rockwell HardnessC43
Country of OriginUnited States
(subject to change)