Perko Hatch Fastener Windshield Keeper This Perko hatch fastener is also a windshield keeper. It is chrome plated brass and zinc alloy, with a black polymer handle. Specifications Base dimensions 1-12 x 58 Screw Size 8 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Hardware Product MPN 0769DP0CHR Product UPC 085226555749 Fast Ship In Stock Ships Today