S-93744A130 0.26" ID x 0.625" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior electrical conductivity for reliable performance in demanding electrical systems and grounding applications
• Excellent corrosion resistance ensures long-term durability in harsh industrial environments
• Precise dimensional accuracy with 0.26" ID and 0.625" OD for perfect fit with 1/4" fasteners
• Optimized mechanical strength with Rockwell F77 hardness rating for consistent load distribution
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe global usage
• Consistent thickness control between 0.052-0.072" for uniform clamping force and vibration resistance
• Material purity advantage using high-quality copper for optimal thermal and electrical properties

Professional Applications & Engineering Value

Engineered for electrical and industrial applications, these copper flat washers provide critical solutions where conductivity and corrosion resistance are paramount. The copper material ensures minimal energy loss in electrical connections while the Rockwell F77 hardness maintains structural integrity under compression loads. Ideal for power distribution systems, grounding assemblies, and electronic enclosures, these washers prevent galvanic corrosion when paired with compatible metals. The precise 1/4" screw size compatibility and consistent flat washer design guarantee proper seating and pressure distribution, eliminating hot spots in electrical joints and extending equipment service life in demanding industrial environments.

Specification Summary & Compliance

This copper flat washer features inch system dimensions with 0.26" internal diameter and 0.625" outer diameter, designed for 1/4" fasteners with thickness maintained between 0.052-0.072". Manufactured to precise flat washer specifications with Rockwell F77 hardness ensuring mechanical reliability. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, meeting global regulatory requirements for hazardous substance restrictions and chemical safety.