Self Locking Nut (THU) - 1-1/8"-7 Tools The rail clamp arm is

The rail clamp arm is designed to support the full weight of the saw

scissors and pouch holder

Manufactured per AREMA specifications

This unit requires the use of two carbide inserts

Lightweight (36 lbs

Self Locking Nut (THU) - 1-1/8"-7 Tools The rail clamp arm isDescription The J. Lanfranco 1 1 8 7 THU Self Locking Nut is a heavy duty, full height hex nut possessing self locking technology. These innovative nuts provide unparalleled vibration resistance even when subjected to heavy loads and high train traffic, and do not require routine tightening and maintenance like the other nut and lock washer method. The THUs single piece unique design incorporates two locking slots. When tightened using an impact