PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. A thin, flat circular part with a centrally located hole with outside diameter approximately twice the nominal thread cdiameter of the bolt or screw to be used with it. The "A" in 125A denotes that this washer is not chamfered. This is the most commonly used flat washer with low carbon bolts, screws and nuts.