Jam Nut 1 1/2 Inch-12 LH Thread For Threaded Bung RockJock 4x4RockJock's Jam Nuts have been a staple in our many product lines for decades! From our many adjustable Johnny Joint products, Currectlync Steering components, to Antirock Sway Bar end links, our jam nuts are found everywhere! We carry RH and LH thread jam nuts in sizes from 1 2 in. 20 all the way up to 1 1 2 in. 12. This Jam Nut features a 1 1 2 in. 12 LH thread and a compact 2 1 4 in. hex to match our threaded bungs. Jam Nut Fits: Universal