S-91982A275 M8 DIN 1587 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with chrome-plated steel construction for extended service life in harsh industrial environments
• Reliable sealing capability with full cap design that protects threads from contaminants and prevents fluid ingress
• Precise thread engagement with Class 6H thread fit ensuring consistent, vibration-resistant fastening performance
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Industry-standard compliance meeting DIN 1587 specifications for dimensional accuracy and mechanical properties
• Environmental responsibility with RoHS 3 compliance, making them suitable for regulated applications
• Optimized for coarse threading with M8 x 1.25 mm configuration providing quick assembly and reduced cross-threading risk

Professional Applications & Engineering Value

These chrome-plated steel cap nuts deliver exceptional value in applications where both corrosion resistance and thread protection are critical. The M8 coarse thread configuration with 1.25 mm pitch enables rapid installation in manufacturing lines while maintaining secure fastening in high-vibration environments. The external hex drive design provides superior torque transmission compared to internal drive alternatives, reducing tool slippage and damage during installation. Engineered to DIN 1587 standards, these metric cap nuts offer reliable performance in automotive assemblies, machinery enclosures, and electrical equipment where sealed connections prevent contamination and extend component lifespan. The full-cap profile effectively shields internal threads from moisture, dust, and chemical exposure, making them ideal for outdoor equipment, marine applications, and industrial machinery requiring durable sealing solutions.

Specification Summary & Compliance

This M8 cap nut features metric coarse threading with 1.25 mm pitch and Class 6H thread fit per ISO standards, ensuring precise dimensional accuracy. Manufactured to DIN 1587 specifications with standard external hex drive (13mm width) and 15mm overall height. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, meeting international environmental regulations for industrial components.