S-90331A559 M27 x 81 mm DIN 6334 Coupling Nuts
Coupling Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional tensile strength with Class 10 rating ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc-plated steel coating extends service life in harsh industrial environments, lowering maintenance frequency.
- Precise coarse threading (3mm pitch) with Class 6H fit enables quick, secure connections while minimizing cross-threading risks during assembly.
- Robust external hex design provides easy installation and removal with standard tools, improving workflow efficiency.
- Full compliance with DIN 6334 guarantees dimensional accuracy and interchangeability, ensuring consistent quality across projects.
- Heavy-duty construction (81mm length, 41mm width) offers ample engagement for joining long threaded rods or studs in structural applications.
- Environmental regulation adherence through RoHS 3 and REACH compliance meets international safety standards for industrial procurement.
Professional Applications & Engineering Value
This M27 coupling nut delivers critical engineering solutions where extended-length fastening is required. Manufactured from zinc-plated steel, it combats corrosion in outdoor machinery, construction frameworks, and assembly lines—preventing premature degradation. The coarse metric thread (3mm pitch) and Class 6H thread fit enable rapid alignment and secure mating with threaded rods, minimizing installation errors in time-sensitive projects. Its external hex drive accommodates high-torque tools for tight connections in heavy-load scenarios like structural supports, conveyor systems, and industrial equipment. By adhering to DIN 6334, this nut ensures dimensional reliability, making it ideal for OEMs and MRO applications demanding repeatable, high-strength performance.
Specification Summary & Compliance
This coupling nut maintains Class 6H thread fit per ISO/metric standards, with coarse M27x3mm threading and full compliance to DIN 6334 manufacturing specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, confirming suitability for regulated industrial and international markets.
