S-94744A508 0.656" ID x 1.25" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Exceptional Load Distribution - The precise 1.25" OD and 0.656" ID ensure even pressure distribution, preventing surface damage and joint loosening under heavy loads.
• Superior Corrosion Resistance - Zinc-plated steel construction provides reliable protection against rust and environmental degradation, extending service life in harsh conditions.
• Maximum Strength Reliability - Grade 8 classification and Rockwell C38 hardness guarantee consistent performance in high-stress applications without deformation.
• Standardized Precision Fit - Manufactured to ASME B18.21.1 specifications for perfect compatibility with 5/8" fasteners, eliminating installation issues.
• Enhanced Durability - The 0.090-0.112" thickness range offers optimal resilience, maintaining integrity through repeated torque cycles and vibration.
• Environmental Compliance Assurance - RoHS 3 and REACH compliance eliminates regulatory concerns for international industrial projects.
• Optimized for Heavy-Duty Applications - Specifically engineered for machinery, construction, and automotive assemblies requiring dependable Grade 8 performance.

Professional Applications & Engineering Value

This Grade 8 zinc-plated steel flat washer solves critical engineering challenges in heavy machinery assembly, structural steel connections, and high-vibration environments. The Rockwell C38 hardness prevents brinelling and embedding in soft materials, while the zinc plating creates a sacrificial barrier against galvanic corrosion when used with dissimilar metals. Its ASME B18.21.1 compliance ensures dimensional consistency across replacement cycles, reducing maintenance downtime. The optimized 1.25" OD provides maximum bearing surface for 5/8" screw applications, distributing clamp load effectively to prevent joint failure in torque-critical assemblies. These industrial washers deliver predictable performance in construction equipment, automotive frames, and manufacturing fixtures where high-strength fastening systems cannot compromise.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with precise 0.656" ID and 1.25" OD tolerances for consistent fit. The Grade 8 classification confirms high tensile strength requirements, while Rockwell C38 hardness verifies material integrity. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, including the latest SVHC updates. Designed for 5/8" screw size applications in inch measurement systems with 0.090-0.112" thickness maintaining uniform compression characteristics.