S-91111A138 12.7 mm ID x 18 mm OD DIN 7980 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through the split lock design that maintains tension under dynamic loads
• Exceptional corrosion resistance with 18-8 stainless steel construction for demanding industrial environments
• Precise dimensional compatibility with 12.7mm inner diameter ensuring perfect fit for M12 fasteners
• Enhanced load distribution with 18mm outer diameter providing greater surface contact area
• Reliable performance standardization through DIN 7980 compliance for consistent quality
• Environmental compliance assurance with RoHS 3 and REACH compliance for global industrial applications
• Optimized thickness range (2.3-2.7mm) providing ideal spring tension while maintaining structural integrity

Professional Applications & Engineering Value

These M12 metric split lock washers deliver critical vibration-resistant performance in demanding industrial applications where fastener loosening can compromise system integrity. The 18-8 stainless steel construction provides exceptional corrosion resistance, making these locking washers ideal for machinery, automotive assemblies, and outdoor equipment exposed to harsh environments. Engineered to DIN 7980 standard, these washers maintain consistent spring tension and reliable locking action across temperature variations and dynamic loads. The precise 12.7mm inner diameter ensures perfect mating with M12 fasteners while the 18mm outer diameter provides optimal load distribution. This combination of material quality and dimensional precision solves common industrial challenges of fastener failure in high-vibration applications while meeting stringent environmental compliance requirements.

Specification Summary & Compliance

This split lock washer features precise metric dimensions with 12.7mm inner diameter, 18mm outer diameter, and thickness ranging from 2.3-2.7mm, specifically designed for M12 fastener applications. Manufactured to DIN 7980 specifications for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets. Constructed from premium 18-8 stainless steel for corrosion resistance and durability in demanding operating conditions.