S-90481A261 0.375" ID x 0.75" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
• Precise dimensional fit with 0.375" inner diameter specifically engineered for 5/16" screws
• Optimal load distribution with 0.75" outer diameter to prevent surface damage and material embedment
• Consistent performance maintained through controlled thickness range of 0.060-0.090"
• Environmental compliance assurance with RoHS 3 and REACH standards for safe industrial usage
• Broad compatibility with inch system components and standard industrial equipment
• Reliable mechanical protection for joints and surfaces in assembly applications

Professional Applications & Engineering Value

This zinc-plated steel flat washer delivers critical engineering solutions for industrial assembly challenges. The 0.375" ID provides precise alignment with 5/16" screws, while the 0.75" OD effectively distributes clamping forces to prevent surface damage and joint loosening. The zinc plating offers essential corrosion resistance in environments exposed to moisture or chemicals, significantly extending component lifespan. These flat washers are particularly valuable in machinery assembly, electrical enclosures, and structural frameworks where consistent performance and environmental compliance are mandatory. The inch system compatibility ensures seamless integration with existing North American industrial standards and equipment specifications.

Specification Summary & Compliance

Manufactured to precise dimensional standards with inner diameter of 0.375", outer diameter of 0.75", and thickness range of 0.060-0.090". This flat washer is engineered for use with 5/16" screws in inch system applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe usage in regulated industrial environments. The zinc-plated steel construction provides reliable performance while meeting international compliance requirements for hazardous substance restrictions.