S-98363A116 17.5 mm ID x 56 mm OD DIN 440-R Oversized Washers

Key Features & Benefits at a Glance

• Enhanced load distribution with 56mm outer diameter to prevent surface damage and maintain joint integrity
• Precise M16 screw compatibility through 17.5mm inner diameter ensuring secure fastening without play
• Optimized thickness range (4.0-6.0mm) provides flexibility for varying gap and compression requirements
• Superior durability with Rockwell B50 hardness steel construction resisting deformation under stress
• Reliable standardization per DIN 440-R specifications guaranteeing consistent performance in industrial applications
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use in regulated industries
• Corrosion-resistant steel material ensures long service life in demanding operating conditions

Professional Applications & Engineering Value

This M16 metric flat washer delivers critical engineering solutions where load distribution and surface protection are paramount. Manufactured from steel with Rockwell B50 hardness, it effectively prevents bolt head and nut embedding into connected materials, maintaining clamping force in high-vibration environments. The DIN 440-R standardization ensures precise dimensional accuracy for industrial machinery, structural steelwork, and heavy equipment assemblies. With its 4.0-6.0mm thickness range, engineers can accommodate minor surface irregularities while the 56mm OD provides maximum bearing surface. This flat washer solves common challenges of joint relaxation and material deformation in metric system applications across manufacturing, construction, and automotive sectors.

Specification Summary & Compliance

This flat washer maintains precise dimensional tolerances as specified in DIN 440-R standards with 17.5mm inner diameter, 56mm outer diameter, and 4.0-6.0mm thickness range. Manufactured from steel with Rockwell B50 hardness for consistent mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety. Suitable for metric M16 screw sizes in various industrial applications requiring standardized components.