Exclusive Perma-Loc Design
Features (Click to view cutaway of Perma-Loc)
Made of heat-treated 8740 alloy chrome moly steelCompact, easy-to-use 12-point head holds wrench in placeFlush-machined set screw head for optimum contactBottom perpendicular to threads; threads perpendicular to base of adjuster ensuring optimum seat and even pressureNo special adjusting tools required16 per package