S-91228A111 0.312" ID Leveling Washers for I-Beams

Key Features & Benefits at a Glance

• Superior load distribution through precision tapered design, reducing stress concentrations and preventing joint failure in demanding applications.
• Enhanced corrosion resistance with Black-Oxide Iron finish, extending service life in harsh industrial environments.
• Exceptional durability provided by Rockwell B62 hardness, maintaining structural integrity under high pressure and vibration.
• Precise fit and alignment with 0.312" ID and 0.688" width, ensuring compatibility with 1/4" screws for reliable assembly.
• Optimized load-bearing capacity from the tapered profile (0.219" to 0.078" thickness), effectively distributing forces to protect components.
• Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility for international supply chains.
• Reliable performance in inch system applications, designed for seamless integration with standard industrial equipment and fasteners.

Professional Applications & Engineering Value

This Black-Oxide Iron tapered washer is engineered to address critical challenges in industrial settings where uneven surfaces and dynamic loads compromise fastener integrity. The precision tapered design effectively redistributes clamping force, preventing loosening and damage to connected components under vibration or thermal cycling. Made from robust iron with a Rockwell B62 hardness, it withstands high-stress conditions in machinery, automotive assemblies, and structural frameworks. The Black-Oxide surface treatment adds a layer of corrosion resistance, making it ideal for outdoor or humid environments. By ensuring consistent load distribution for 1/4" screws, this washer reduces maintenance needs and enhances the longevity of bolted joints, delivering reliable performance in heavy-duty applications.

Specification Summary & Compliance

This tapered washer features an ID of 0.312" and a width of 0.688", with thickness tapering from 0.219" to 0.078" for optimal performance with 1/4" screws in inch-based systems. It is manufactured from Black-Oxide Iron with a hardness of Rockwell B62 to ensure durability. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.