S-91166A400 43 mm ID x 78 mm OD DIN 125; ISO 7090 General Purpose Washers
General Purpose Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced corrosion resistance with zinc plating for extended service life in demanding industrial environments
- Superior load distribution with a large 78mm outer diameter, minimizing surface pressure and material stress
- Reliable dimensional stability from Rockwell B75 hardness, preventing deformation under high clamping forces
- Guaranteed interchangeability through compliance with DIN 125 and ISO 7090 international standards
- Versatile M42 screw compatibility with a precise 43mm inner diameter for secure, accurate fitting
- Robust construction with a 6.0-8.0mm thickness range, engineered for heavy-duty applications
- Safe for regulated industries with full RoHS 3 and REACH compliance, meeting environmental and safety mandates
Professional Applications & Engineering Value
This M42 zinc plated steel flat washer is engineered to solve critical challenges in industrial assembly and machinery. Its zinc plated steel construction provides a protective barrier against rust and corrosion, significantly extending component life in harsh operating conditions. The flat washer design, conforming to DIN 125 and ISO 7090, ensures perfect fit and function with M42 fasteners, distributing loads evenly to prevent joint loosening, surface damage, and premature failure. This is essential for maintaining structural integrity in heavy-duty applications like construction equipment, industrial machinery frames, and large-scale structural steelwork, where vibration and high loads are constant concerns.
Specification Summary & Compliance
This washer features a 43mm Inner Diameter (ID) and 78mm Outer Diameter (OD) with a thickness of 6.0-8.0 mm, manufactured to the precise dimensional tolerances of DIN 125 and ISO 7090 standards. The material is zinc plated steel with a hardness of Rockwell B75. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets the latest environmental and safety requirements for industrial components.
