20 Chrome Steel Locking Heptagon Security Lug Nuts Lugs Wheels/Rims 12X1.5 L17 for Buick LaCrosse Threaded to 12X1.5mm Lugs weight 33 grams each. 60 degree conical style seat. Locking lug nuts (7 sided design). 32.5mm long and 22.2mm wide at the base.