* The most popular single-ply track stud available for trail riding * Through-hardened carbon steel with 60 degrees carbide insert * 1.2" head with anti-rotation lines * 5/16" threads * For use in single-ply tracks and Grand Digger support plates * Proper nuts included 1075 series comes with standard lock nuts 1325 and 1450 series come with Woody's Sort Big Nuts 1575 series comes with Woody's Tall Big Nuts