Mr. Gasket Bullet Tipped Carburetor Studs put an end to stripped-out threads in cast aluminum manifolds, guiding fasteners into position and accepting hex nuts without cross-threading. Coated with black oxide and featuring an integral socket head for easy installation and removal, they're 2 inches long, have 5/16-18 threads, come in a package of four, and have four matching nuts and washers to complete the job. Complete sets of 1.5-inch studs (part number 6345G) are also available.