Schaefer's new stainless steel open base cleats are a combination of form, function and strength. Using electropolished 316 stainless steel and incorporating counter-sunk holes for flush mount fasteners. Urethane washers keep dissimilar metals apart and generous radiused edges keep line chafe to a minimum. Stainless steel open base cleat, smooth generous radius edges reduce line chafe. Large throat allows loops to pass through open base. .Counter sunk holes for flush fastening and Urethane washers included. Description: 4-3/4" open base cleat, 316 stainless steel Max line size: 3/8" Length: 4.75" Height: 0.9" Fastener size: #10FH Weight: 4.1 oz.