Metric Stainless Steel Hex Long Coupling Nut With SS304 And SS316 DIN6334 Manufacturer

A coupling nut also known as extension nut is a threaded fastener for joining two male threads, most commonly a threaded rod, but also pipes. The outside of the fastener is usually a hex so a wrench can hold it. Variations include reducing coupling nuts, for joining two different size threads; sight hole coupling nuts, which have a sight hole for observing the amount of engagement; and coupling nuts with left-handed threads. These are used to make up long rod assemblies from shorter lengths of rods.The rods are threaded into the coupling nut for a certain distance. It is given a plain finish. It is either cold drawn or hot rolled depending on the bar stock used. Coupling nuts threaded with two different thread sizes and profiles are called reducing coupling nuts.

Coupling nuts can be used to tighten a rod assembly inward or to press a rod assembly outward.

Drawings of DIN 6334 Hex Coupling Nuts  (unit : mm)