S-93012A117 0.656" ID x 1.312" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with hot-dipped galvanized steel coating for extended service life in harsh environments
• Optimal load distribution through precise 1.312" OD and 0.656" ID dimensions, preventing surface damage
• Enhanced durability with Rockwell B72 hardness rating, maintaining structural integrity under pressure
• Reliable performance guaranteed by ASME B18.21.1 standard compliance for consistent quality
• Environmental responsibility with RoHS 3 compliance, meeting strict regulatory requirements
• Perfect fit for 5/8" fasteners ensuring secure assembly and vibration resistance
• Versatile industrial application across machinery, construction, and equipment requiring inch-system components

Professional Applications & Engineering Value

These hot-dipped galvanized steel washers deliver exceptional corrosion resistance in demanding industrial settings where moisture, chemicals, and outdoor exposure compromise fastener integrity. Engineered to ASME B18.21.1 standards, the SAE flat washer design ensures uniform clamping force distribution across 5/8" bolt connections, preventing joint loosening and surface indentation. The Rockwell B72 hardness provides reliable performance in high-vibration applications like heavy machinery, structural steelwork, and transportation equipment. With precise inch-system dimensions (0.656" ID / 1.312" OD), these washers eliminate installation issues while the galvanized coating significantly reduces maintenance frequency in corrosive environments.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional specifications with 0.656" inner diameter and 1.312" outer diameter. Features Rockwell B72 hardness and 0.074-0.121" thickness range for consistent performance. Compliant with RoHS 3 (2015/863/EU) environmental standards and designed for 5/8" screw sizes in inch measurement systems.