S-91081A029 0.312" ID x 0.75" OD USS Washers

Key Features & Benefits at a Glance

• Optimal load distribution with USS standard flat design to prevent surface damage and extend joint life
• Precise fit for 1/4" screws with 0.312" ID ensuring secure fastening and reduced vibration loosening
• Enhanced durability from high-strength steel material, resisting wear in demanding industrial environments
• Consistent performance with 0.051-0.080" thickness range for reliable spacing and tension control
• Broad compatibility with inch-system components, simplifying sourcing for USS standard applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable use
• Cost-effective reliability through standardized dimensions, reducing maintenance and replacement needs

Professional Applications & Engineering Value

These USS flat washers are engineered to address common industrial challenges like bolt loosening, surface indentation, and corrosion concerns. Made from robust steel material, they provide excellent load-bearing capacity, distributing pressure evenly under 1/4" screw heads to prevent damage to soft surfaces and maintain joint integrity. The precise 0.312" ID and 0.75" OD ensure a snug fit, minimizing movement in high-vibration settings such as machinery assembly, structural frameworks, and automotive applications. With a thickness of 0.051-0.080", they offer consistent spacing and shock absorption, enhancing the longevity of fastened connections. Compliance with RoHS and REACH standards guarantees they meet strict environmental and safety regulations, making them ideal for global supply chains and eco-conscious projects.

Specification Summary & Compliance

This washer adheres to USS standard inch measurements with an inner diameter of 0.312", outer diameter of 0.75", and thickness range of 0.051-0.080", designed specifically for 1/4" screw size. Manufactured from steel, it ensures reliable performance in various industrial uses. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility without hardness ratings, focusing on general-purpose durability.