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Steel flat washer manufactured to a range of thicknesses. This model has an 0.75 Inch outside diameter and an 0.458 INCH inside diameter.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
A 0.75 in
B 0.458 in
Brand Accurate Screw
C 0.01 in
Display Name 390S
Finish None
Material Steel
Max C 0.5 in
Measurement Units Standard
Model Number 390
SKU 390S
Screw Size 7/16
Specs (in metric)
Label Value
A 19.05 mm
B 11.63 mm
Brand Accurate Screw
C 0.25 mm
Display Name 390S
Finish None
Material Steel
Max C 12.7 mm
Measurement Units Standard
Model Number 390
SKU 390S
Screw Size 7/16