S-99041A125 0.938" ID Square Washers

Key Features & Benefits at a Glance

• Superior load distribution with 4-inch square design to prevent surface damage and fastener loosening under heavy loads
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in harsh environments
• Precise compatibility with 0.938" inner diameter ensuring perfect fit for standard 7/8" screw applications
• Consistent performance maintained by Rockwell B40 hardness rating for reliable mechanical properties
• Optimized thickness range (0.220-0.280") providing ideal compression and spacing capabilities
• Full regulatory compliance meeting RoHS 3 and REACH standards for safe global industrial use
• Dimensional stability in inch system measurements ensuring seamless integration with existing equipment

Professional Applications & Engineering Value

This heavy-duty square washer delivers exceptional engineering value through its zinc-plated steel construction and optimized geometry. The 4-inch square configuration provides maximum bearing surface area, effectively distributing clamping forces in structural applications and preventing material deformation. The Rockwell B40 hardness ensures consistent performance under vibration and dynamic loading conditions, while the zinc plating offers reliable corrosion protection for outdoor equipment, machinery bases, and construction applications. Engineered specifically for 7/8" screw size requirements, this washer solves common industrial challenges including joint relaxation, surface marring, and premature fastener failure in demanding environments.

Specification Summary & Compliance

This square washer features precision dimensions including 0.938" inner diameter, 4" width, and thickness range of 0.220-0.280" in the inch measurement system. Manufactured from zinc-plated steel with Rockwell B40 hardness, the product maintains dimensional accuracy for reliable performance. The washer is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and meets REACH (EC 1907/2006) requirements, ensuring environmental and safety standards for industrial applications worldwide.