3.125" inside diameter 0.500" overall width slotted hexagon head screw permanently attached self-locking 11734 nut on a positionable support retained on band. band
Used on m-1 abrams tank.. 1.812" inside diameter 0.495" overall width collared slotted head screw shield included, part number 12387373-16 passivate surface treated band
Used on LVT7A1. 0.438" inside diameter 0.495" overall width slotted hexagon head screw stainless steel liner to cover band serrations on inside dia within min band