Used on left-handed, steel-framed, crank-out casement windows. 9/16 inch outside diameter guide button, 5/16 inch diameter spindle, 3-7/8 inch and 4-3/4 inch mounting hole centers. Bronze color, painted finish. Hardened steel arm with diecast housing and crank; includes installation fasteners. The handing for this Prime-Line casement operator is determined by viewing the operator from the INSIDE LOOKING OUT.
