S-99041A207 0.188" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
• Precise No. 8 screw compatibility with 0.188" inner diameter ensuring perfect fit and secure fastening
• Enhanced load distribution from square 0.5" width design, preventing surface damage and maintaining joint integrity
• Consistent performance guaranteed by Rockwell B40 hardness, providing reliable mechanical strength
• Optimized thickness control (0.042-0.051") for uniform pressure application and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe usage in global markets
• Heavy-duty industrial suitability with inch system measurements for seamless integration into existing assemblies

Professional Applications & Engineering Value

Engineered for industrial fastening systems, these zinc-plated steel square washers address critical challenges in machinery assembly and structural applications. The 0.188" ID precisely accommodates No. 8 screws, eliminating play while the square configuration provides superior load-bearing surface area compared to round washers. This design prevents embedding into soft materials and distributes clamping force evenly, crucial for vibration-prone environments. The zinc plating creates a sacrificial layer that actively fights corrosion, making these precision washers ideal for outdoor equipment, automotive components, and electrical enclosures where moisture resistance is paramount. Their Rockwell B40 hardness ensures consistent performance under repeated torque applications without deformation.

Specification Summary & Compliance

Manufactured to inch system standards with precise dimensional control including 0.188" inner diameter, 0.5" width, and 0.042-0.051" thickness range. These square washers meet industry-standard Rockwell B40 hardness requirements for mechanical durability. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to international environmental and safety standards for hazardous substances.