S-98026A114 0.5" ID x 1.25" OD ASME B18.21.1 General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional load distribution with 1.25" outer diameter to prevent surface damage and maintain joint integrity under high stress
• Superior corrosion resistance through black protective coating, extending service life in harsh industrial environments
• Grade 8 strength certification ensuring reliable performance in critical heavy-duty applications
• Precision dimensional compliance with 7/16" inner diameter for perfect fit with corresponding fasteners
• Enhanced durability from Rockwell C38 hardness rating, resisting deformation under extreme pressure
• Industry-standard reliability meeting ASME B18.21.1 specifications for consistent quality and performance
• Environmental compliance with RoHS 3 and REACH regulations for safe usage across global markets

Professional Applications & Engineering Value

These Grade 8 USS flat washers deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The black corrosion-resistant coated steel construction provides essential protection against environmental degradation in outdoor, marine, and chemical exposure scenarios. With their heavy-duty design and Rockwell C38 hardness, these washers effectively distribute clamping forces in high-torque applications, preventing bolt head embedding and surface damage to connected materials. The precise 7/16" inner diameter ensures optimal fastener alignment while the 1.25" outer diameter maximizes bearing surface area. Ideal for construction equipment, industrial machinery, and structural steel connections, these ASME B18.21.1 compliant washers provide reliable performance where failure is not an option.

Specification Summary & Compliance

Manufactured to exacting ASME B18.21.1 standards with dimensional precision including 0.5" ID, 1.25" OD, and thickness ranging 0.064-0.080". These USS flat washers feature Grade 8 strength classification with Rockwell C38 hardness for superior mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptance. Designed specifically for use with 7/16" fasteners in inch measurement system applications.