S-92916A405 0.392" ID x 0.875" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to brass material, ideal for humid or harsh industrial environments
• Precise fit for 3/8" screws with 0.392" inner diameter, ensuring secure fastening and reduced vibration loosening
• Enhanced load distribution from 0.875" outer diameter, minimizing surface damage and extending assembly life
• Consistent durability with Rockwell B60 hardness, providing reliable performance under mechanical stress
• Strict thickness control between 0.052" and 0.072" for uniform pressure application and ease of installation
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets
• Long-term reliability in inch-system applications, reducing maintenance needs and replacement costs

Professional Applications & Engineering Value

This brass flat washer is engineered to address common industrial challenges like galvanic corrosion, frequent disassembly wear, and regulatory restrictions. Its brass composition naturally resists rust and chemical exposure, making it perfect for plumbing, electrical enclosures, and marine equipment where moisture is a concern. The precise 0.392" ID and 0.875" OD ensure optimal load spreading on 3/8" screw joints, preventing surface indentation and maintaining bolt preload in vibrating machinery. With Rockwell B60 hardness, it withstands repeated torque without deformation, while RoHS and REACH compliance guarantees suitability for electronics and consumer products, eliminating supply chain disruptions.

Specification Summary & Compliance

This flat washer adheres to standard inch system dimensions with an inner diameter of 0.392", outer diameter of 0.875", and thickness ranging from 0.052" to 0.072". It is manufactured to fit 3/8" screw size applications and features a hardness of Rockwell B60 for consistent mechanical properties. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial and commercial use worldwide.