S-91100A220 22 mm ID x 60 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel coating for extended service life in harsh industrial environments
• Exceptional load distribution thanks to 60mm outer diameter design that prevents surface damage and loosening
• Precision dimensional accuracy with 22mm inner diameter ensuring perfect fit for M20 screw applications
• Enhanced mechanical strength from Rockwell B56 hardness rating for reliable performance under heavy loads
• Industry-standard compliance with DIN 9021 specifications guaranteeing consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance meeting strict regulatory requirements
• Optimized thickness range (3.4-4.6mm) providing ideal balance between structural support and installation flexibility

Professional Applications & Engineering Value

This M20 flat washer engineered to DIN 9021 standards delivers critical engineering solutions for industrial assembly challenges. The zinc-plated steel construction provides essential corrosion resistance in manufacturing facilities, construction sites, and outdoor equipment where moisture and environmental factors threaten fastener integrity. With its 60mm outer diameter, the washer effectively distributes clamping forces across wider surface areas, preventing joint relaxation and material deformation in heavy-duty applications. The precise 22mm inner diameter ensures secure seating on M20 fasteners while the controlled thickness variation accommodates manufacturing tolerances without compromising performance. These metric flat washers serve as reliable components in machinery assembly, structural steel connections, and automotive applications where vibration resistance and long-term durability are paramount.

Specification Summary & Compliance

This flat washer conforms to DIN 9021 dimensional standards with 22mm inner diameter, 60mm outer diameter, and thickness ranging 3.4-4.6mm. Manufactured from zinc-plated steel with Rockwell B56 hardness rating, the product meets precise mechanical property requirements. Compliance certifications include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards. Designed specifically for M20 screw applications, these washers provide reliable performance in industrial fastening systems requiring metric specifications.