S-97093A133 18.2 mm ID x 29.4 mm OD DIN 128A Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial applications
• Zinc-plated steel construction provides excellent corrosion protection for extended service life
• Rockwell C44 hardness rating ensures exceptional durability and spring tension retention
• Curved split design creates continuous tension that compensates for thermal expansion and vibration
• Precision metric dimensions (18.2mm ID/29.4mm OD) ensure perfect fit for M18 fasteners
• DIN 128A compliance guarantees consistent quality and performance to German industrial standards
• Environmental compliance with RoHS 3 and REACH regulations for global manufacturing acceptance

Professional Applications & Engineering Value

This M18 split lock washer delivers critical vibration damping in demanding industrial environments where mechanical stress and thermal cycling threaten joint integrity. The curved lock washer design applies continuous spring pressure that counters rotational forces, making it ideal for heavy machinery, automotive assemblies, and structural applications. Manufactured from zinc-plated steel with Rockwell C44 hardness, it maintains its clamping force through extreme operating conditions while resisting corrosion. The metric dimensions (18.2mm ID/29.4mm OD) ensure precise compatibility with M18 screws, eliminating play and maintaining alignment in critical connections. This DIN 128A compliant washer solves the fundamental challenge of maintaining bolt preload in vibrating systems, reducing maintenance frequency and preventing catastrophic failures.

Specification Summary & Compliance

This split lock washer features precision dimensions with 18.2mm inner diameter, 29.4mm outer diameter, and 2.7mm thickness. Manufactured to DIN 128A specifications for curved spring lock washers, it ensures dimensional accuracy and performance consistency. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material restrictions. The Rockwell C44 hardness rating confirms the material's ability to maintain spring characteristics under repeated loading cycles.