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Insulated aluminum track level for leveling rail to 57-1/2" standard US radius rail
Thanks to its convenient packaging and safe design
Ideal for track maintenance
1-1/2" and 1-11/16" jaw opening for 1-7/16" and 1-5/8" nut width
Norton 6"/4-3/4" diameter by 2" thick with 5/8"-11 threaded arbor hole
Self Locking Nut (THU) - 1-3/8"-6 NS Punchout Insulated aluminum track level forDescription The J. Lanfranco 1 3 8 6 THU Self Locking Nut is a heavy duty, full height hex nut possessing self locking technology. These lock nuts are made from grade 8 alloy steel and built for extreme performance in critical railroad applications such as railroad diamonds and turnouts. They are proven resistant to loosening regardless of the amount of vibration, shock or impact the THU endures. The THU is a single piece design requiring no inserts
