S-91982A200 M4 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
• Precise thread engagement with Class 6H thread fit ensuring reliable fastening and vibration resistance
• Quick installation capability through external hex drive design compatible with standard tools
• Dimensional consistency meeting DIN 1587 standards for interchangeability across metric applications
• Optimized load distribution with standard cap nut profile providing secure sealing and surface protection
• Enhanced durability with coarse thread spacing maintaining performance under dynamic loading conditions
• Regulatory compliance with RoHS 3 exemption for lead as steel alloying element meeting environmental standards

Professional Applications & Engineering Value

This M4 cap nut delivers critical engineering value through its chrome-plated steel construction and metric coarse thread design. The external hex drive enables rapid installation in confined spaces while maintaining torque accuracy, significantly reducing assembly time in automated production lines. The Class 6H thread fit provides consistent clamping force distribution, preventing loosening in vibrating machinery and equipment. Particularly valuable for industrial fastening applications requiring both aesthetic appeal and functional performance, the DIN 1587 compliance ensures dimensional stability across automotive, machinery, and electronic enclosure assemblies where corrosion resistance and reliable thread engagement are paramount.

Specification Summary & Compliance

Manufactured to DIN 1587 standards with Class 6H thread fit precision and M4 x 0.7 mm coarse thread specifications. Features right-hand metric threading with 7mm width and 8mm height dimensions. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as alloying element in steel, ensuring environmental regulatory adherence for industrial fastener applications.