Washer Type: Flat Washer

Material: HARDENED STEEL,Hardened Steel

Coating: Zinc Phosphate and Oil

Inside Diameter (mm): 11

Outside Diameter (mm): 21

Material Description: Hardened Steel

Thickness (mm): 2.5

Fits Bolt Sizes (mm): M10

Inner Diameter (mm): 11

Outer Diameter (mm): 21

Thickness - 3 (mm): 2.5

Hardened: Yes

Outside Diameter (OD) - 2 (mm): 21.00

Inside Diameter (ID) - 1 (mm): 11.00

Finish: Phosphate and Oil Coated