The Edelbrock Carburetor Stud Kit includes studs along with washers and nuts. These fasteners are made from steel and given a cadmium finish. The stud measures 1.38 in length and its thread size is 5/16-18. They are a standard length for installations without a spacer or adapter. The kit consists of 4 pieces each of washer, stud and nut. The nut features a standard hex style.