S-91455A370 43 mm ID x 78 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments.
• Exceptional load distribution thanks to the 78mm outer diameter, minimizing surface pressure and preventing material damage.
• Precise fit for M42 screws with a 43mm inner diameter, ensuring secure fastening and reducing assembly time.
• Enhanced durability and deformation resistance from Rockwell B91 hardness, maintaining performance under high stress.
• Guaranteed dimensional consistency and interchangeability by conforming to DIN 125 and ISO 7089 standards.
• Reliable thickness range of 6.0-8.0 mm for robust spacing and vibration dampening in heavy-duty applications.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M42 flat washer is engineered from zinc plated steel to tackle common industrial challenges like corrosion, joint loosening, and surface erosion. Its metric dimensions and adherence to DIN 125 and ISO 7089 ensure perfect compatibility with M42 screw assemblies in machinery, structural steelwork, and heavy equipment. The flat washer design effectively distributes clamping force, preventing bolt head embedding and protecting soft materials. With a Rockwell B91 hardness, it withstands high vibrational loads and extreme pressures, making it a dependable choice for industrial applications requiring long-term reliability and minimal maintenance.

Specification Summary & Compliance

This washer features precise metric dimensions: 43mm ID, 78mm OD, and a thickness of 6.0-8.0 mm, manufactured to standard tolerances as per DIN 125 and ISO 7089. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.