S-99041A124 0.938" ID Square Washers

Key Features & Benefits at a Glance

• Superior load distribution with 3" 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
• Consistent mechanical performance with Rockwell B40 hardness ensuring reliable strength and deformation resistance
• Precision fit compatibility with 0.938" inner diameter specifically engineered for 7/8" screw applications
• Optimal thickness range (0.220-0.280") providing ideal compression characteristics and vibration dampening
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
• Heavy-duty construction designed to withstand extreme mechanical stresses in demanding industrial settings

Professional Applications & Engineering Value

This heavy-duty square washer addresses critical engineering challenges in industrial assembly where standard washers fail under extreme loading conditions. The 3" square configuration provides significantly larger surface contact area compared to round washers, effectively distributing clamping forces across broader surfaces to prevent material deformation and joint failure. Manufactured from zinc-plated steel, this washer delivers essential corrosion resistance while maintaining the structural integrity required for construction equipment, heavy machinery, and structural steel applications. The precise 0.938" inner diameter ensures perfect alignment with 7/8" screws, eliminating installation issues and maintaining consistent bolt tension in high-vibration environments. With Rockwell B40 hardness, these washers resist deformation under extreme pressure, making them ideal for critical connections where reliability is paramount.

Specification Summary & Compliance

This inch-system square washer features precision dimensions including 0.938" inner diameter, 3" width, and controlled thickness range of 0.220-0.280" for consistent performance. Manufactured to industrial standards for heavy-duty applications, the product maintains full compliance with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations current through January 17, 2023, covering 233 SVHC substances. The zinc-plated steel construction combined with Rockwell B40 hardness rating ensures mechanical properties suitable for the most demanding industrial environments.