Prime-Line H 4306 Casement Operator, 9-Inch Square Type, Right Hand, Aluminum

This casement operator is constructed of a diecast body, a hardened steel arm (with a steel guide button at 9/16 inches in diameter), and a case-hardened worm gear mechanism that comes in a corrosion resistant plating. it features a square-shaped housing and an operator crank handle, and comes finished in an aluminum painted color. this prime-line casement operator is right-handed, determined when viewing the window from the inside looking out. it is a face-mounted design that installs on older, crank-out casement, steel window frames with 3-7/8 inch and 4-3/4 inch mounting hole centers. this high-end quality operator exhibits minimal gear lash, with positive and smooth operation. for the opposite handing of this operator, see model number h-4300. installation fasteners and a set screw (for affixing the crank handle onto the operator spindle) are included with each operator.