S-95395A242 0.406" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to brass construction, ideal for humid or chemical-exposed environments
• Excellent durability and load distribution with Rockwell B60 hardness, preventing deformation under pressure
• Precise fit for 3/8" screws with 0.406" inner diameter, ensuring secure fastening and reduced vibration loosening
• Enhanced surface protection with 1" outer diameter, minimizing damage to connected materials
• Consistent performance in demanding applications due to controlled 0.105-0.130" thickness for uniform pressure
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
• Reliable electrical conductivity from copper alloy material, beneficial for electrical and electronic assemblies

Professional Applications & Engineering Value

Engineered for industrial settings where corrosion resistance and long-term reliability are critical, these brass flat washers address common failure points in machinery, plumbing, and electrical systems. The copper alloy material inherently resists oxidation and chemical degradation, making them suitable for marine, chemical processing, and outdoor applications. With precise inch system dimensions (0.406" ID, 1" OD) and Rockwell B60 hardness, they maintain structural integrity under repetitive stress, preventing bolt loosening and material fatigue. Their RoHS 3 and REACH compliance ensures adherence to strict environmental regulations, providing peace of mind for OEMs and maintenance teams in sectors like automotive, aerospace, and industrial equipment manufacturing.

Specification Summary & Compliance

This flat washer features inch-based dimensions with an inner diameter of 0.406", outer diameter of 1", and thickness range of 0.105-0.130", designed specifically for 3/8" screw size applications. Manufactured from brass material with a Rockwell B60 hardness rating, it ensures consistent mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and REACH (EC 1907/2006) regulations, meeting current substance restriction requirements for industrial components.