Jiangsu Zhenya Special Screw Co.,Ltd is one of the leading China coupling nuts manufacturers and suppliers, as a professional company, our productive factory is able to produce CE certification coupling nuts at both high quality and low price. Welcome to buy discount and cheap, or wholesale products from us.

Hex couplers are used to connect two pieces of threaded material. Hex and heavy hex couplers are threaded right hand.Coupling Nuts are made to Din 6334 specifications and are often used for joining or coupling lengths of Stainless Steel Threaded Rod (Allthread).