S-93279A600 20.5 mm ID x 33.8 mm OD ASME B18.21.2M Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with Rockwell C38 hardness for reliable performance in high-stress environments
• Enhanced corrosion protection through blue-dyed steel construction for extended service life
• Precision dimensional accuracy with 20.5mm ID, 33.8mm OD, and 5.7mm thickness ensuring perfect fit for M20 fasteners
• Industry-standard compliance meeting ASME B18.21.2M specifications for consistent quality and performance
• Environmental responsibility with full RoHS 3 and REACH compliance for safe industrial use
• Optimal spring tension from standard split lock design providing continuous locking force under vibration
• Quick visual identification through distinctive blue coloring for efficient inventory management

Professional Applications & Engineering Value

These M20 split lock washers deliver exceptional engineering value in demanding industrial applications where vibration-induced loosening poses significant operational risks. The blue-dyed steel construction provides both corrosion resistance and easy visual identification, while the precise metric dimensions (20.5mm ID × 33.8mm OD × 5.7mm thickness) ensure perfect compatibility with M20 fasteners. The split lock washer standard design generates continuous spring tension that maintains clamping force even under extreme vibration conditions commonly encountered in heavy machinery, automotive assemblies, and industrial equipment. With Rockwell C38 hardness, these washers withstand repeated compression cycles without permanent deformation, making them ideal for maintenance-critical applications requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This metric split lock washer features precise dimensional specifications (20.5mm ID, 33.8mm OD, 5.7mm thickness) manufactured to ASME B18.21.2M standards for consistent performance and interchangeability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide. The standard split lock washer type design provides reliable locking action through controlled spring tension, while the blue-dyed steel material with Rockwell C38 hardness rating guarantees durability and corrosion resistance in demanding operating conditions.