CASING 5-1/2" TBG RTS-6 Tubing Thread Protectors CASING 5-1/2" TBG RTS-6 Tubing Thread Protectors API Thread Protectors for Oil Casing, Thread Protectors for Oil Pipe, Oil Steel Pipe Thread Protectors, Steel thread protectors, oilwell tubing protectors Material: Steel, plastic, steel-plastic Standard:API 5CT PSL1/PSL2/PSL3 Level Grade:J55, K55, H40, C90, T95, N80-1, N80-Q, L80, L80-13Cr, L80-9CR, P110-13Cr, L80-1cr, Super 13Chrome, Q125 Threaded:BTC, LTC, STC, Couplings with PIN and BOX Outer diameter:4 1/2"-20" (114.3mm-508mm) Wall thickness:5.21mm-16.13mm Lb/Ft:9.5-40.5 Length:Range1(4.88-7.62m) Range2(7.63-10.35m) Range3.(10.36-14.63m) but in fact the range length is 10.36-11.9m, also in fact this kind is used commonly. Certification:API 5CT, MTC (Material test certification) The Third Inspection:SGS, BV, or according to clients needs. Packing:In bundles by steel strips, with thread protector and nylon ring. Packaging Details: In bundles Delivery Detail: Shipped in 10 days after payment