Two types of coupling are available which meet API Specifications: API Class T sucker rod coupling and SM sucker rod coupling

Sucker rod couplings are manufactured by yunsheng up to API Spec 11B standard, including class SM sucker rod coupling, class T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling, are availbale in size of 5/8, 3/4, 7/8, 1 and 1-1/8

With over 30,000pcs monthly capacity of  sucker rod coupling.Manufactured with high quality Carbon steel AISI 5140.

API sucker rod coupling, class T

1)Type: full size class T coupling /slim hole  class T coupling

2)Material: seamless alloy steel AISI 5140

3)Standard: API Spec 11B

4)Smoothness: 3.1×10-3

5) Hole rate: 2%

6)Basic Hardness: HRC 16-23

7)Coupling diameter5/8",3/4 ",7/8".11-1/8"

8)Main specification of 7/8" SHT sucker rod coupling

    Weight : 0.52kg

    O.D. :1-5/8"( 41.3mm)

    Length : 4in( 101.6mm)

If you are intrested in any type sucker rod coupling,pls contact us freely for more information.

As we are the direct manufacturer, we'll offer you our most favorable price.