ISO trapezoidal thread based on DIN 103.
Steel and stainless steel nuts: for adjustments during manual operation and as locking nuts. Not advised for use with motorised drives due to the steel/steel material pairing.
Gunmetal nuts: for motion drives with low and medium speed. By insufficient lubrication, gunmetal trapezoidal thread nuts have good dry-running properties on steel spindles.
Plastic nuts: for low-noise motion drives. Good dry-running properties.
Tolerance class 7H.
Stainless steel 1.4305.
Plastic PA6.6 (mit MoS2).