Nuts

Nuts, mostly from Hillman: USS, SAE and metric hex nuts, nylon lock nuts, whiz lock nuts, acorn nuts and tee nuts in zinc-plated, zinc dichromate and stainless steel, plus brass slip joint nuts.

USS nuts are coarse thread and SAE nuts are fine thread, so match the nut to the bolt's thread. Bolts are in Hex & Lag Bolts and Carriage Bolts. Part of Bolts, Nuts & Washers.