S-90481A247 0.406" ID x 2.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• Optimal load distribution thanks to the large 2.5" outer diameter, preventing surface damage and joint loosening
• Precise fit for 3/8" screws with 0.406" inner diameter ensuring secure fastening and reduced vibration
• Consistent performance maintained through controlled thickness range (0.051-0.080") for uniform pressure application
• Global compliance assurance meeting RoHS 3 and REACH environmental standards for international supply chain integration
• Versatile industrial application across machinery, construction, and equipment assembly due to robust steel material
• Cost-effective maintenance through durable zinc plating that resists wear and reduces replacement frequency

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial applications where corrosion resistance and reliable load distribution are paramount. The combination of 0.406" ID precision-matched to 3/8" screws ensures vibration-resistant fastening in machinery assemblies, automotive components, and structural frameworks. The substantial 2.5" OD provides superior surface coverage, preventing embedment and damage to soft materials while maintaining joint integrity under dynamic loads. Manufactured from industrial-grade steel with protective zinc plating, this flat washer withstands environmental exposure in outdoor equipment, marine applications, and manufacturing facilities where moisture and chemical exposure would compromise ordinary fasteners.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.406" inner diameter, 2.5" outer diameter, and thickness range of 0.051-0.080" for consistent performance in 3/8" screw applications. Manufactured to standard flat washer specifications, it provides reliable dimensional accuracy for industrial use. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international substance restriction standards for global manufacturing and distribution.