Prime Line Products H3596 Casement Locking HandlePrime Line Products H3596 Casement Locking Handle Features:; Diecast locking handle and keeper with 1-1/2" hole centers; Similar to Truth hardware; Uses #10 flat head machine screws commonly used on metal framed windows; Offset base; Contains one locking handle, one keeper, and one set of installation screws; Carded; H3596: Aluminum, left hand; H3597: Aluminum, right hand; H3821: White, right hand