S-95395A310 0.281" ID x 0.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ideal for humid or chemically exposed industrial environments.
• Excellent durability and wear resistance due to Rockwell B60 hardness, ensuring long service life under mechanical stress.
• Precise fit for 1/4" screws with 0.281" inner diameter, providing secure fastening and reducing assembly errors.
• Optimal load distribution with a 0.625" outer diameter, minimizing surface damage and loosening in high-vibration applications.
• Compliance with strict environmental regulations, including RoHS 3 and REACH, making them safe for global supply chains and sensitive industries.
• Consistent thickness (0.167-0.193") ensures uniform pressure and reliable performance in repetitive fastening tasks.
• Broad compatibility with inch-system components, simplifying sourcing and integration into existing machinery and equipment.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these brass flat washers leverage the inherent corrosion resistance of copper alloys to prevent rust and degradation in moisture-rich or chemical-laden environments, such as marine equipment, plumbing systems, and electrical enclosures. The Rockwell B60 hardness provides robust mechanical strength, resisting deformation under high clamping forces and extending the lifespan of assemblies. With precise dimensions tailored for 1/4" screw size applications, they ensure a snug fit that reduces the risk of fastener failure, vibration-induced loosening, and maintenance downtime. Ideal for heavy-duty washers needs in automotive, construction, and manufacturing, they deliver reliable performance while meeting rigorous RoHS and REACH compliance standards for safe, sustainable operations.

Specification Summary & Compliance

This flat washer adheres to inch-system measurements with an inner diameter of 0.281", outer diameter of 0.625", and thickness ranging from 0.167" to 0.193", ensuring dimensional accuracy for 1/4" screw compatibility. Manufactured from brass material with a hardness of Rockwell B60, it meets industry standards for 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) as of January 17, 2023, covering 233 SVHCs, guaranteeing environmental and safety adherence in professional use.