S-94744A712 4.8 mm ID x 9.7 mm OD ASME B18.22M ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel construction, extending service life in demanding environments
• Precise dimensional fit with 4.8mm ID and 9.7mm OD ensuring optimal alignment and load distribution for M4 screws
• Consistent performance through controlled 0.8-1.2mm thickness range for reliable compression and spacing
• Industry-standard compliance with ASME B18.22M specifications guaranteeing interchangeability and quality assurance
• Environmental regulation adherence through REACH compliance, ensuring safe usage in regulated markets
• Enhanced surface durability from zinc plating that resists wear during installation and operation
• Versatile industrial application across machinery, equipment assembly, and structural fastening systems

Professional Applications & Engineering Value

This M4 metric flat washer delivers critical engineering solutions through its zinc-plated steel construction and precision dimensions. The combination of 4.8mm inner diameter and 9.7mm outer diameter provides optimal bearing surface for M4 fasteners, preventing loosening under vibration and distributing clamp load effectively across joined materials. The zinc plating offers essential corrosion resistance in industrial environments where moisture, chemicals, or outdoor exposure could compromise fastener integrity. Engineers specify these ASME B18.22M compliant washers for machinery assembly, electrical enclosures, automotive components, and structural frameworks where consistent thickness (0.8-1.2mm) ensures reliable gasketing and spacing functions. The REACH compliance further validates their suitability for European markets and environmentally conscious manufacturing operations.

Specification Summary & Compliance

This flat washer maintains dimensional accuracy per ASME B18.22M standards with inner diameter of 4.8mm, outer diameter of 9.7mm, and thickness range of 0.8-1.2mm. Manufactured from zinc-plated steel for corrosion resistance, it is specifically designed for M4 screw applications. The product demonstrates full compliance with REACH (EC 1907/2006) regulations regarding substance restrictions and is produced under quality systems ensuring consistent mechanical properties and surface finish integrity.