McGard UHS security nut set (4 nuts + 1 wrench). M12x1.50 non-conical socket nuts for Toyota Lexus OE alloy wheels. To increase security, the UHS series nuts and bolt head are equipped with a rotating ring. which makes them extremely difficult to open without a special wrench. The UHS series meets Thachams 4-level security category. Nut height 35 mm. Sleeve dimensions 17.2x15 mm (diameter x height). Chuck diam 29 mm. Key size 21 mm. Do not use a compressed air wrench to tighten the security nuts! Each package comes with an ID number. You can order a spare chuck using this code!