Main Size: 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, , 8-5/8, 9-5/8, 10-3/4,11-3/4, 13-3/8, 16, 20, NC26, NC38, NC50, 4 1/2 Reg, 3 1/2 Reg, 6 5/8 Reg and 7 5/8 Reg etc. Threads: BTC, STC, LTC Application:Thread Protectors can be used on Casing Pipe, Tubing, Drilling Pipe. Feel free to contact us if any further questions,we will serve you as soon as possible.
