punched coupler 

1.Material:High grade carbon steel Q235 Q245 or as required, both forged and pressed are available.

2.Standard:we can manufacture according to standard EN74 or BS1139.

3.Anti-sliding:the inside wall of the couplers are well processed into threads for anti-sliding.

4.Type:sleeve coupers,pressed double couplers,pressed swivel

couplers,forged/pressed putlog couplers,forged swivel couplers and so on.

5.Surface treatment: hot dip galvanized or electro galvanized.

We can manufacture as your requirements,glad to give your a quotation upon receipt of your detailed requiremetns.