S-98689A252 4.4 mm ID x 8.5 mm OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise dimensional fit with 4.4mm ID and 8.5mm OD ensures reliable performance with M4.2 fasteners
• Ultra-thin profile (0.2-0.4mm thickness) provides optimal load distribution in space-constrained assemblies
• Environmental compliance assurance with RoHS 3 and REACH compliance for global market acceptance
• Excellent material durability maintains structural integrity under mechanical stress and vibration
• Metric system compatibility ensures seamless integration with international engineering standards
• Cost-effective protection extends fastener and assembly lifespan through superior surface bearing

Professional Applications & Engineering Value

These M4.2 flat washers deliver exceptional engineering value in precision mechanical systems where space optimization and corrosion resistance are critical. The 18-8 stainless steel composition provides reliable performance in industrial environments exposed to moisture, chemicals, and temperature variations. With their ultra-thin profile (0.2-0.4mm), these metric washers solve clearance challenges in compact assemblies while maintaining effective load distribution. The precise 4.4mm inner diameter ensures perfect alignment with M4.2 fasteners, preventing loosening and reducing maintenance requirements. Ideal for electronics, instrumentation, and precision machinery applications, these corrosion-resistant washers offer long-term reliability where component failure is not an option.

Specification Summary & Compliance

This flat washer features metric dimensions with 4.4mm inner diameter, 8.5mm outer diameter, and thickness range of 0.2-0.4mm, designed specifically for M4.2 screw applications. Manufactured from 18-8 stainless steel, the washers comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring they're free from restricted substances. The flat washer design follows standard metric specifications for reliable performance in industrial and mechanical assemblies requiring consistent dimensional accuracy and material quality.