The Hillman SAE Flat Gray Washers will help to prevent bolts and nuts from pulling through any metal surface. These flat washers are ideal for increasing the load bearing surface under a fastener's head by distributing the load through the washer.Features Zinc plated steel Specifications Dimensions: 0.5" x 1.6" x 4" Type: Washer Application: Home Improvement Size: #6 Color: Gray