Grover Accordion Accessory (502C)

Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Locking machine heads utilize the famous 18:1 Rotomatic design with a "thumb screw" mechanism. Perfect replacement for the most standard machine heads. Chrome, 3 Per Side. Includes all mounting hardware. Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw. Locking machine heads utilize the famous 18:1 Rotomatic design with a "thumb screw" mechanism. Perfect replacement for the most standard machine heads. Chrome, 3 Per Side. Includes all mounting hardware. Mounting screws and threaded hex peghead bushings with washers are included. 10mm-diameter (13/32") pegholes required