S-94744A503 0.344" ID x 0.625" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Exceptional load distribution with 0.625" OD and 0.344" ID for superior surface coverage and reduced material stress
• Maximum strength and durability from Grade 8 classification, ideal for high-torque and heavy-load applications
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in harsh environments
• Precise dimensional stability with 0.056-0.071" thickness range ensuring consistent performance under compression
• Superior hardness performance with Rockwell C38 rating for excellent wear resistance and deformation prevention
• Reliable industrial compliance meeting ASME B18.21.1 standards for quality assurance and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable industrial use

Professional Applications & Engineering Value

These Grade 8 zinc-plated steel flat washers deliver critical engineering solutions for industrial applications requiring maximum strength and reliability. The heavy-duty construction with Rockwell C38 hardness prevents deformation under extreme loads, while the zinc plating provides essential corrosion resistance in demanding environments. Engineered to ASME B18.21.1 standards, these washers ensure precise fit for 5/16" screws with consistent 0.625" OD and 0.344" ID dimensions, preventing loosening and maintaining fastener integrity in machinery, structural assemblies, and heavy equipment. The combination of high-strength material and compliant surface treatment makes them ideal for applications where vibration resistance and long-term performance are paramount.

Specification Summary & Compliance

Manufactured to exacting ASME B18.21.1 specifications with precise dimensional tolerances including 0.625" outer diameter, 0.344" inner diameter, and 0.056-0.071" thickness range. These Grade 8 flat washers feature zinc-plated steel construction with Rockwell C38 hardness rating, ensuring consistent performance in inch system applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and regulatory adherence for industrial and commercial use.