Lug Nuts. Shop for lug nuts with LugNutGuys.com. Our vast selection covers most car and truck applications from aluminum wheels to steels wheels including aftermarket and OE factory wheels and rims. Many popular styles like acorn, spike, bullet, mag, open and closed end. Common thread sizes 1/2-20, 7/16-20, 12x1.25, 12x1.5, 14x1.5, 14x2, 9/16-18.