S-97093A112 4.1 mm ID x 7.6 mm OD DIN 128A Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through the curved spring design that maintains constant tension under dynamic loads
• Enhanced corrosion protection with black-oxide steel construction for extended service life in demanding environments
• Reliable spring force retention thanks to Rockwell C44 hardness that prevents deformation under repeated compression
• Precise M4 screw compatibility with 4.1mm inner diameter ensuring perfect fit and optimal locking performance
• Industry-standard compliance meeting DIN 128A specifications for consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global manufacturing applications
• Optimal load distribution through 7.6mm outer diameter design that minimizes surface pressure and material stress

Professional Applications & Engineering Value

This M4 split lock washer delivers critical vibration-resistant fastening solutions for industrial machinery, automotive assemblies, and electrical equipment where constant tension maintenance is essential. The curved spring design creates continuous axial pressure that compensates for thermal expansion, material relaxation, and dynamic loads - effectively preventing screw loosening in high-vibration environments. Manufactured from black-oxide steel with Rockwell C44 hardness, this metric lock washer maintains its spring properties through countless compression cycles while resisting corrosion in moderate environmental conditions. The precise 4.1mm ID and 7.6mm OD dimensions ensure perfect alignment with M4 fasteners, providing reliable performance in industrial applications where safety and reliability are paramount.

Specification Summary & Compliance

This split lock washer features precision metric dimensions with 4.1mm inner diameter, 7.6mm outer diameter, and 0.7mm thickness manufactured to DIN 128A standards for dimensional accuracy and performance consistency. The product maintains full compliance with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding substance restrictions. The black-oxide steel construction combined with Rockwell C44 hardness ensures mechanical properties meet industrial fastener requirements for vibration resistance and durability in demanding applications.