Woodys Gold Digger 60 deg. Traction Master Carbide Studs - 1.450in. Stud Length - 5/16in. Thread GDP6-1450-CS The ultimate push-through carbide stud 60 deg. carbide point for superb penetration and durability One-piece stud/head design eliminates the need for T-nuts 144 pack Comes with Woodys Big Nuts