Blue Jay Fasteners offers hundreds of thousands of different types and sizes of bolts, nuts, screws, washers, pins, anchors, security screws and socket products. We carry a wide variety of materials, grades and high strength.Features. Alloy Split Lock Washers Zinc Dichromate. Box of 100 Specifications. Size 0.37 in.. Material Zinc and Dichromate. Weight 0.6kg