S-94744A722 4.8 mm ID x 11.8 mm OD ASME B18.22M ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Precise dimensional accuracy (4.8mm ID x 11.8mm OD) ensures perfect fit with M4 screws, preventing assembly misalignment
• Enhanced load distribution through optimal 1.0-1.4mm thickness, reducing surface pressure and material fatigue
• Guaranteed mechanical reliability with full compliance to ASME B18.22M standards for consistent performance
• Safe for regulated industries with REACH SVHC compliance, meeting stringent environmental and safety requirements
• Versatile industrial compatibility designed for metric M4 screw systems in machinery, equipment, and structural assemblies

Professional Applications & Engineering Value

This M4 metric flat washer delivers critical engineering solutions where vibration resistance and surface protection are paramount. The zinc-plated steel construction creates a sacrificial barrier against oxidation, making it ideal for automotive subassemblies, electrical enclosures, and outdoor equipment exposed to moisture. Its ASME B18.22M compliant geometry ensures uniform clamping force distribution, preventing fastener loosening under dynamic loads. By maintaining consistent 1.0-1.4mm thickness tolerance, it eliminates gap variations in multi-fastener joints—solving common issues of joint relaxation in industrial washers applications. The REACH compliant formulation further supports sustainable manufacturing initiatives without compromising mechanical integrity.

Specification Summary & Compliance

Manufactured to ASME B18.22M dimensional standards with inner diameter 4.8mm, outer diameter 11.8mm, and thickness range 1.0-1.4mm. Material certification confirms zinc-plated steel composition. Regulatory compliance includes REACH (EC 1907/2006) adherence with SVHC documentation current as of 01/17/2022. Product is designed for M4 screw sizes in metric fastener systems.