Marine Industries West offers a wide variety of stainless steel countersunk bolts. We offer most hard to find bolts to help you with your rigging project.
Our countersunk billet stringer washers are machined from 1/4" thick 6061-T6 billet aluminum and measure 5/16" ID X 1 1/4" OD. Washers are available in polished, powdercoated, and anodized finishes.