S-91111A151 25.5 mm ID x 35.9 mm OD DIN 7980 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial environments
• Durable 18-8 stainless steel construction provides excellent corrosion resistance and long service life
• Precision DIN 7980 compliance ensures reliable performance and interchangeability in metric applications
• Optimized dimensions (25.5mm ID/35.9mm OD) deliver perfect fit for M24 fasteners and consistent clamping force
• Robust 4.8-5.2mm thickness maintains spring tension under heavy loads and repeated stress cycles
• Full regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Standard split lock design offers easy installation and reliable locking action without special tools

Professional Applications & Engineering Value

This M24 split lock washer delivers critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. Engineered from 18-8 stainless steel, it maintains its locking capability and corrosion resistance even in harsh environments including chemical processing, marine applications, and outdoor equipment. The split lock design creates continuous spring tension against both the fastener head and mating surface, effectively preventing rotation and loosening caused by machinery vibration, thermal cycling, or dynamic loads. Compliant with DIN 7980 standards, this metric lock washer ensures dimensional accuracy and reliable performance in European equipment and global industrial machinery requiring metric fastening systems. The precise 25.5mm inner diameter provides optimal fit for M24 screws while the 35.9mm outer diameter distributes clamping force effectively across connected surfaces.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications including 25.5mm inner diameter, 35.9mm outer diameter, and 4.8-5.2mm thickness, manufactured to DIN 7980 standards for consistent quality and performance in metric applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance. Manufactured from 18-8 stainless steel, this washer maintains its mechanical properties and corrosion resistance across various industrial conditions while providing reliable vibration-resistant locking for M24 fastener applications.