Hardened steel wheel stud set with durable black oxidized finish, compatible with Dexter 5200, 6000, 7000 7-262 trailers and replacing K71-686-00, includes 6x 1/2"-20 x 2.70 studs, features easy hammer-in installation by aligning holes, and fits most 5200-7000 lb hubs/drums made after 2003. We recommend using a professional stud installation tool during fitting.