Coupling nuts are long hex nuts chamfered (beveled) at each end and used to couple two externally threaded objects of the same size and thread pitch.
They can join different parts, like a hanger bolt and a threaded rod, or connect identical items, such as two threaded rods, to extend length.
Sometimes coupling nuts function as spacers/standoffs. They are also known as: extension nuts, rod coupling nuts, hex spacers.
Size: M6-M36
Width across flats: as per size
Length: as per size
Thread type: metric corse/fine right-hand thread
imperial thread is available upon request
left-hand thread is available upon request
Material: steel
Grade: 4.8/6.8/8.8/10.9/12.9
Finish: plain/black oxide/zinc plated (galvanized)/hot dip galvanized (HDG)
other kinds of surface treatment are upon request
Technical info: DIN 6334
