Features: 

1) Material: carbon steel, seamless steel, stainless steel 

2) Hot-dipped galvanized or electrical galvanized and black, also Powder coating as customer’ s request. 

3) Sockets are available in full sockets, half sockets and Special sockets. Customers’ drawings or designs are available. 

4) Standard according to BS EN10241, ASTM A 865, DIN 2986, the thread refers to internal parallel thread.