This Prime-Line H 3960 is a universal folding crank handle that fits most casement operator crank spindles. It is diecast construction with a coppertone finish. The universal spline system fits most casement operators. It is easy to install. The folding design is often used to replace the normal crank handle to avoiding interference with window blinds.
These operator tee handles are used on casement, awning, jalousie, and louver window operators
Folding arm is constructed from diecast zinc metal to reduce projection distance and interference with window coverings
Universal fit with set screw and plastic inserts which are 11/32, 5/16, 3/8, 9/32 inches all with 12 ridges and a 3/8 inch with 11 ridges
Align the adapter with the set screw on the handle and pass the screw through the hole and set directly on metal spindle shaft to hold in place
Used to replace the normal crank handle to avoid interference with window blinds and features split shaft fold-over design with a 1-5/8 inch projectionerference with window blinds and features split shaft fold-over design
Note- Please compare the line art drawing and compare with the spindle you have before purchasing (not Universal)