S-98035A107 13 mm ID x 22 mm OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from black-oxide steel surface treatment, extending service life in demanding industrial environments
• Exceptional load distribution with precise 13mm ID and 22mm OD dimensions, preventing surface damage and maintaining joint integrity
• Optimized for M12 screw applications ensuring perfect fit and reliable performance in metric fastening systems
• Enhanced durability through Rockwell 15N80 hardness rating, resisting deformation under heavy loads
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Consistent thickness control (2.5-3.4 mm) providing uniform pressure distribution across mating surfaces
• Reliable performance in high-stress applications due to robust steel construction and precise manufacturing

Professional Applications & Engineering Value

This M12 metric flat washer delivers critical engineering value through its black-oxide steel construction and precise dimensional control. The 13mm inner diameter ensures perfect alignment with M12 fasteners while the 22mm outer diameter provides optimal load distribution, preventing surface indentation and material fatigue in heavy machinery, automotive assemblies, and structural steel connections. The Rockwell 15N80 hardness rating guarantees exceptional resistance to deformation under sustained pressure, making these industrial washers ideal for applications requiring repeated disassembly and reassembly. The black-oxide surface treatment offers superior corrosion protection in environments where moisture and chemicals are present, significantly extending maintenance intervals and reducing total cost of ownership for industrial operations.

Specification Summary & Compliance

Manufactured to precise metric standards with 13mm inner diameter and 22mm outer diameter, this flat washer maintains consistent thickness between 2.5-3.4 mm for reliable performance. The component features Rockwell 15N80 hardness certification and full compliance with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel, along with REACH (EC 1907/2006) compliance current as of January 17, 2023, covering 233 SVHC substances. These certifications ensure the washer meets international regulatory requirements for industrial applications.