Nord-Lock X-series washers: Torque guidelines
All figures are based on tests with calibrated torque transmitters and load cells performed in our laboratory. Torque guidelines available below for all standard materials and sizes. These values are to be considered as recommended nominal values to maximize the preload achieved in joints secured with Nord-Lock X-series washers.
Should you require torque guidelines for other bolt grades, sizes or materials, we will be able to support you. Please address firstname.lastname@example.org go to Contact us to find your local Nord-Lock office or authorized distributor.
Cu/C paste* = Copper/graphite paste (Molykote® 1000)
GF = ratio of yield point
μth = thread friction
μh = washer friction
1 N = 0,225 lb
1 Nm = 0,738 ft-lb