20PCS (2x10 packs) McMaster-Carr 18-8 Stainless Steel Narrow Base Weld Nuts 1/4"-20.
New in original packaging.
Base Barrel
Thread Size Lg. Wd. Thick. Dia. Ht.
1/4"-20
3/4" 1/2" 1/16" 5/16" 5/16"