Nord-Lock washers: Torque guidelines
The below torque values have been verified in test laboratories and represent a configuration example. The values are indicative and should not be seen as recommendations as varying conditions, joint designs and requirements apply. The Nord-Lock Group provides customized torque calculations to any standard, free of charge. Please fill out the torque guidelines form or contact your Nord-Lock office for support.
Cu/C paste* = copper/graphite paste (Molykote® 1000)
Oil = WD40 has been used.
GF = Ratio of yield point. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point.
μth = thread friction coefficient
μh = under head friction coefficient
1 N = 0,225 lb
1 Nm = 0,738 ft-lb