S-90045A115 M8 DIN 980, ISO 7042 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through top lock distorted thread technology that maintains clamping force in high-vibration environments
• Excellent corrosion resistance provided by 18-8 stainless steel construction for extended service life in harsh conditions
• Reliable thread engagement with Class 6H thread fit ensuring precise mating with compatible bolts and studs
• Industry-standard compatibility meeting DIN 980 and ISO 7042 specifications for consistent performance across applications
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Environmental compliance assurance with RoHS 3 and REACH compliance for safe use in regulated industries
• Optimized dimensional stability with 13mm width and 6.4mm height providing reliable seating and uniform clamping pressure

Professional Applications & Engineering Value

This M8 locknut with 1.25mm coarse thread pitch delivers exceptional engineering value in demanding industrial environments where vibration-induced loosening compromises safety and performance. The distorted top lock design creates controlled interference with mating threads, generating consistent friction that prevents back-off without damaging bolt threads. Manufactured from 18-8 stainless steel, these external hex locknuts offer excellent corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements. The standard hex nut profile ensures compatibility with conventional wrenching tools while the right-hand thread direction and coarse thread spacing provide quick installation in assembly line operations. Ideal for machinery, automotive, and structural applications where reliable, reusable locking fasteners are essential for operational safety and reduced maintenance intervals.

Specification Summary & Compliance

This metric locknut features M8 x 1.25mm coarse threads with Class 6H thread fit tolerance for precision engagement. Manufactured to DIN 980 and ISO 7042 standards, ensuring dimensional accuracy and performance consistency. The top lock distorted thread type provides secure locking action while maintaining reusability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence. External hex drive design with 13mm width and 6.4mm height conforms to standard wrench sizes for efficient installation and maintenance.