Carbide Studs - 1.575" - 48 Pack For use in single-ply tracks and Grand Digger? Support Plates, Through-hardened carbon steel with 60? carbide insert, Proper nuts included, 1.2" head with anti-rotation lines, Packages available with these studs, nuts and Round Grand Digger? plates - designed for 2.86 and 3.00 pitch single-ply tracks, 5/16" threads, The most popular single-ply track stud available for trail riding