S-96887A331 M5 DIN 557 Square Nuts
Square 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
- Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments
- High-strength Class 5 rating provides reliable load-bearing capacity and resistance to vibration loosening in heavy-duty applications
- Precision Class 7H thread fit guarantees smooth installation and secure mating with compatible M5 bolts
- External square drive design enables easy manual or tool-driven installation with superior torque transmission
- Coarse metric thread (0.8mm pitch) facilitates quick assembly and disassembly while maintaining strong holding power
- Compact 8mm width and 4mm height offers space-saving installation in confined mechanical assemblies
- Full regulatory compliance with DIN 557 standards plus RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
This M5 square nut delivers exceptional engineering value through its zinc-plated steel construction and metric coarse thread design. The combination of Class 5 strength grade and Class 7H thread fit addresses critical industrial challenges including vibration resistance, corrosion protection, and installation reliability. The external square drive configuration provides superior grip for manual adjustment or tool-assisted tightening in hard-to-reach areas. These square nuts are particularly valuable in machinery assembly, equipment manufacturing, and structural frameworks where coarse thread fasteners prevent cross-threading and enable rapid maintenance operations. The compact dimensions (8mm width, 4mm height) make them ideal for space-constrained applications while maintaining full DIN 557 specification compliance for international projects.
Specification Summary & Compliance
This square nut features M5 metric coarse thread with 0.8mm pitch and Class 7H thread fit tolerance according to DIN 557 specifications. The manufacturing complies with Class 5 strength grade requirements and incorporates right-hand thread direction with external square drive configuration. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across various industrial sectors.
