Coupling Nuts

Coupling Nuts

Coupling Nuts are long nuts used to couple threaded rods or similar components. Coupling nuts help extend the threaded rod and are so named as an extension nuts. Hex coupling and round coupling nuts are most commonly used types. Other varities include heavy hex coupling nuts. Coupling nut dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and iso metric thread profile. These are produced across all material categories and astm specifications.

Browse the page for information on coupling nut manufacturing process, forming method, available sizes, sub-types, thread types, metric and imperial dimension standards, weight charts, torque values, material categories, grades and astm specifications.

Coupling Nuts Properties

Forming Hot & Cold Forged
Metric Size M10 to M100
Imperial Size 3/8 to 8"
Threads UNC, UNF, ISO, BSW & ACME.
Standards ASME,BS,DIN,ISO,UNI,DIN-EN
Sub types 1. Fully Threaded Coupling Nuts
2. Partial Threaded Coupling Nuts
3. Metric Coupling Nuts
4. Imperial Coupling Nuts

Coupling Nut Standards

ASME B18.2.1 3/8 inch to 3 inch
BS 1769 ½ inch to 2 inch
ASME B18.2.3.6M M12 to M36
ASME B18.2.3.7M M16 to M36
DIN 6914 M12 to M36
ISO 7412 M12 to M36
UNI 5712 M12 to M36
DIN-EN 14399-4 M12 to M36