Screw Drive Coupler Part for LiftMaster, 4-Pack Garage Door Opener Sprocket Coup

These small couplers are the best solution to this problem. Installation is simple, just remove the two bolts and provide space for the coupler to slide for quick installation. Enhanced Durability: Compared with other similar products, the Ancable Screw Drive Coupler improves the density of polyurethane and adopts an integrated injection molding design process.

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