Description
Length of screw 14-7/8”, diameter of screw -1/2”. Length of rail with screw base, 14-1/2” and width 2-3/4” height 1-3/16”. Length of 2nd rail 19”, width 2-7/8”, height 1-5/6”. The Screw Drive Rail Extension Kit is designed for Genie C-Channel screw drive rails and installs easily to extend a 7 ft rail for 8 ft doors. The Drive screw is included for added value and convenience. The Kit is compatible with the Genie PowerLift, MachForce and Excelerator screw drive garage door opener systems built after 2013. Extension for Genie C-channel screw drive rails Suitable for doors up to 8 ft. high, extends 7 ft. rails Drive screw included Easy installation