S-91202A114 28.5 mm ID x 43 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments, maintaining joint integrity
• Zinc-plated steel construction provides excellent corrosion protection for extended service life in industrial conditions
• Precision DIN 127B compliance ensures consistent performance and interchangeability in metric applications
• Rockwell C44 hardness rating delivers exceptional durability and spring tension for reliable locking action
• Optimized 28.5mm ID/43mm OD dimensions provide perfect fit for M27 fasteners while maximizing contact surface
• 4.8-5.2mm thickness range offers controlled compression and consistent spring performance under load
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility and global acceptance

Professional Applications & Engineering Value

This M27 split lock washer delivers critical engineering solutions where vibration-induced fastener failure poses significant operational risks. The zinc-plated steel construction combines corrosion resistance with the mechanical strength needed for demanding industrial environments. The split lock design creates continuous spring tension against both bearing surfaces, effectively countering rotational forces in machinery, heavy equipment, and structural applications. Engineered to DIN 127B standards, this metric lock washer provides reliable performance in automotive assemblies, manufacturing equipment, and construction applications where consistent locking action is essential for safety and operational continuity. The Rockwell C44 hardness ensures the washer maintains its spring characteristics through repeated loading cycles, making it ideal for maintenance-critical applications.

Specification Summary & Compliance

This standard split lock washer features precise dimensional specifications with 28.5mm inner diameter, 43mm outer diameter, and 4.8-5.2mm thickness range, engineered specifically for M27 screw applications. Manufactured in compliance with DIN 127B standards for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring environmental responsibility and global market acceptance for industrial applications.