Two types of coupling are available which meet API Specifications: regular API Class T coupling and spray metal coupling for anti corrosion. Dimensions and tolerances conform to API Specification 11B. Quality control consists of process, random, and batch inspections
1) Material: seamless alloy steel 2) Standard: API Spec 11B 3) Grade: T 4) Coupling OD: 5/8", 3/4", 7/8", 1" 5) Coupling: 58(+) HRA