ZORO SELECT U12910.037.0001 Top Lock Distorted Thread Lock Nut, 3/8"-16, Steel,
Lock Nut, Finish Zinc-Plated, Material Steel, Material Grade/Class Grade C, Thread Size 3/8 In.-16, Hex Width 9/16 in, Hex Height 13/32 in, Lock Type Top Lock Distorted Thread, Dimensional Standards IFI-100/107, Material Quality Standards...