HARKEN 22mm Track Endstop Kit — Wide Flat Mast Groove, Screwpin, 3826 Material_Acetal They keep the block aligned

They keep the block aligned correctly by pushing the lashing line to the outer edges of the block's head

immediately transferring torque to the head swivel without unwanted corkscrewing delaying the response

Wire the terminals

Suitable as mast-base or lead blocks on small- to mid-sized boats

Great for mainsheets

HARKEN 22mm Track Endstop Kit — Wide Flat Mast Groove, Screwpin, 3826 Material_Acetal They keep the block alignedMounting kit slugs are available for flat or round mast grooves. Order one kit per track section. Use screwpin endstop to easily remove cars and mainsail. Order one kit only. Please refer to this comprehensive Battcar Systems Ordering Guide when selecting Battcar System Components. Note: Special Order Only