Thomas & Betts 1" Steel Locknut 143-TB Box/50

This listing is for 1 box/50 Thomas & Betts 1" Steel Locknuts 143-TB. CHROMATE COATED HARDENED STEEL; TRADE SIZE 1 INCH; DIAMETER 1-11/16 INCH; THICKNESS 13/64 INCH; THREADED INSTALLATION; APPROVAL UL 514-B, CSA C22.2; APPLICABLE STANDARD NEMA FB-1, NFPA 70. These are brand new stock in the opriginal box. Excess inventory. These are not the cheap locknuts you get in your local hardware store. These are what the PROS use.