Description:

Flat Washers USA Yellow Zinc USS-3/8"(OD 1. 0, ID. 438, THK. 084)-Qty-100 Features: Flat washers are used to support and spread the load across the baring area of the bolt and nut to prevent pull through. A flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size.