S-93744A210 0.812" ID x 2" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance due to the copper material, ensuring long-term reliability in harsh environments and reducing maintenance costs.
• Excellent electrical and thermal conductivity for applications requiring efficient energy transfer or heat dissipation in electrical assemblies.
• Precise dimensional fit with 0.812" ID and 2" OD, providing secure fastening for 3/4" screws and minimizing loosening under vibration.
• Enhanced load distribution from the flat design and 0.083-0.103" thickness range, preventing surface damage and extending equipment life.
• Consistent hardness and durability with Rockwell F77 rating, offering reliable performance under repeated stress without deformation.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global industrial markets and simplifying procurement.
• Broad industrial compatibility in inch measurement systems, facilitating easy integration into existing machinery and repair operations.

Professional Applications & Engineering Value

This copper flat washer is engineered to address critical challenges in industrial settings, such as galvanic corrosion and electrical isolation failures. Made from high-purity copper material, it provides inherent corrosion resistance, making it ideal for plumbing, electrical grounding, and marine applications where moisture and chemicals are prevalent. The precise 0.812" ID and 2" OD dimensions ensure a snug fit for 3/4" screw sizes, reducing the risk of assembly errors and improving joint integrity. With a Rockwell F77 hardness, it maintains structural stability under heavy loads, while the flat design evenly distributes pressure to prevent fastener embedding. Commonly used in power generation, automotive, and HVAC systems, this washer enhances safety and longevity by mitigating common issues like seizing and thermal expansion mismatches.

Specification Summary & Compliance

This washer features standard inch dimensions with an ID of 0.812", OD of 2", and thickness range of 0.083-0.103", designed for use with 3/4" screws. It adheres to common industrial tolerances for flat washers and is manufactured from copper with a hardness of Rockwell F77. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for hazardous substances.