70-17 Fast Entry Cam Cleat. Features Die Cast Aluminum Cams, Delrin(tm) Ball Bearings, Computer Designed High Flare allows for easy entry at various angles. Safe Working Load 300 lbs (135kg) Line 1/4" - 7/16" (6mm - 12mm), Requires (2) #10 Flat Head Fasteners. 1-1/2" (38mm) Centers.