Overview
This 304 stainless steel coupling nut is engineered to join two externally threaded rods or fasteners in line. Its unique design incorporates opposing right-hand and left-hand M3 threads over a 3.94-inch length, allowing for precise adjustment of tension or the drawing together of components when rotated. Manufactured to DIN 6334 standards and A2-70 material grade, this component delivers reliable strength and corrosion resistance for demanding mechanical and assembly applications.
Key Features
Constructed from corrosion-resistant 304 stainless steel A2-70 grade provides a tensile strength of approximately 70,000 PSI Opposing right-hand and left-hand M3 threads for tension adjustment Extended 3.94-inch length for joining rods over a distance Plain finish for general-purpose use 0.236-inch hex width for compatibility with standard wrenches Manufactured to DIN 6334 specifications for dimensional consistency
Specifications
System of Measurement: Metric Material Grade/Class: A2-70
Material
Stainless Steel 304 Thread Size: M3 Finish: Plain Length: 3.94 in Width Across Flats: 0.236 in Pack Quantity: 50 units
Applications
General machinery assembly and fabrication Precision tensioning systems and turnbuckle applications Joining threaded rods in construction, framing, and supports Repair and maintenance operations requiring adjustable linkages Prototype development and custom mechanical designs








