Ammco Brake Lathe cross slide twin cutter stud and nut. Stud part # 903031 or 925913. Nut part # 911227. Our studs are cut slightly longer to go slightly deeper for better hold. Comes with 6 1/2 inch long stud and nut. Stud is also replacement for shorter 5 3/4 inch stud. Always clean crossslide threaded hole with 1/2-13 tap before installing new stud.