Material :
W1-- 9mm installation torque 3.5Nm, 12mm installation torque 5.0Nm.
W2--9mm installation torque 5.5Nm, 12mm installation torque 6.5Nm.
W4--9mm installation torque 5.5Nm, 12mm installation torque 6.5Nm.
W5--9mm installation torque5.5Nm, 12mm installation torque 6.5Nm.
