A super-strong Expander Ring made out of High Strength flat-stock steel., Thick material and a wide neck on the three cover fastener tabs resists bending - strongest cover fastener on the market, Three ¼” bolt inserts are tack welded in to prevent spinning and falling out, Rivets on the expander ring lock into the wheel’s safety bead indent and prevent ring from falling out, Exact match to Bassett Beadlock's cover bolt pattern - making High Impact Mud Cover interchangeable.