Woodys Mega-Bite Carbide Studs - 1.45in. Stud Length - 5/16in. Thread MEG-1450-S Unique, multidirectional stud has four flat surfaces on the 5/16in. shank Added contact surface enhances acceleration and deceleration Zinc-coated hardened steel with 60 deg. carbide tip 24 pack Comes with Woodys Big Nuts