alloy wheel bolts nuts lugs M12 x 1.5, 17mm Hex, taper seat - Vauxhall x 4
•Thread size: M12 x 1.5. What is M12 x 1.25?. •Spanner size: 17mm Hex. The Hex refers to the size of the nut/bolt head and therefore the corresponding size of the socket used with the wheel brace. What is Hex?.