This is a Replacement Brake Hub Stud for Kodiak Disc Brakes. This 1/2"-20 Hub Stud will mount in Kodiaks 2,000lb, 3,500lb, and 5,200lb Disc Brake Hub/Rotor Assemblies. It is not uncommon to damage Hub Studs or experience corrosion over time requiring replacement. The Specific measurements of this Hub Stud are 1/2-20 x 1.69 GR 8 with a knurl diameter of .545. Again this Lug Stud is intended for specific use on Kodiaks 5 and 6 Lug Disc Brake Kits. We have a great selection of Trailer Lug Nuts to additionally accommodate your Lug Studs. This is a replacement Kodiak brake rotor stud for your integral brake kit. For a close up of the measurements check out the picture associated with the product.