Use this Prime-Line H 3958 Pella Spline Socket Casement Window Handle with Pella casement operators that have 3/8 inch diameter splines. It fits other, similar-styled casement operators with 3/8 inch special deep splines and features a long-reaching arm for optimal performance. This spline socket crank handle features a sleek, arching, and contoured design to enhance the beauty of your window and provide an elegant finish to Pella casement windows. Made of durable diecast construction for lasting use, the window handle crank comes in a copperite painted finish. It is engineered to resist rust and corrosion. This crank is easy to install. Plus, it has a set screw at the base of the handle allowing it to lock onto the spindle. The casement window crank handle replacement features a sleek, arching design with a unique 3/8 inch bore that fits the Pella special deep spline spindles. It has a 2-3/8 inch drop from the base bottom to the center of knob. For further dimensional information, please see the line drawing (not universal).

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