S-98690A111 4.3 mm ID x 8 mm OD DIN 433; ISO 7092 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Exceptional durability and surface protection with a Rockwell B76 hardness rating
• Precise fit for M4 screws with a 4.3mm ID and 8mm OD for reliable load distribution
• Guaranteed dimensional consistency and interchangeability per DIN 433 and ISO 7092 standards
• Compliance with stringent environmental regulations including RoHS 3 and REACH
• Reliable performance in chemical and marine applications due to the high-grade stainless steel material
• Optimal thickness (0.4-0.6mm) for effective spacing and vibration dampening

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to solve critical challenges in demanding industrial settings. Its high corrosion resistance makes it ideal for applications exposed to chemicals, saltwater, and outdoor elements, preventing fastener failure and maintenance downtime. The precise M4 metric sizing and compliance with DIN 433 and ISO 7092 ensure perfect fit and consistent performance in assembly lines, machinery, and structural frameworks. The flat washer design effectively distributes load and reduces surface wear, extending the service life of connected components in automotive, marine, and chemical processing equipment where long-term reliability is non-negotiable.

Specification Summary & Compliance

This flat washer features a 4.3mm Inner Diameter (ID), 8mm Outer Diameter (OD), and a thickness of 0.4-0.6mm, designed for M4 screw size. It conforms to DIN 433 and ISO 7092 standards for dimensional accuracy and manufacturing quality. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental and safety regulations for industrial use.