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Grade 8 Extra Heavy (Thick) USS Flat Washers
Heat Treated Alloy Steel - Yellow Zinc Plated
EXTRA THICK Grade 8 USS Flat Washers are manufactured from High Strength Alloy Steel. It is recommended that an EXTRA THICK Grade 8 Flat Washer be used with Grade 8 Nuts and Bolts. Grade 8 Washers do not crush and deform when torque is applied in tightening.