Coupling nuts are fasteners that are longer than ordinary nuts and are usually used in situations where greater clamping force is required.

Types: hexagonal coupling nuts, round coupling nuts, such as DIN6334, YJT13002

Length: usually between 18mm and 60mm

Material: carbon steel, stainless steel, copper

Specifications: Common ones include M6x10, M8x12, M10x15, etc.

Surface treatment: galvanized, polished, sandblasted

Applications: automobile manufacturing, mechanical equipment, building structures, furniture manufacturing…