S-91133A194 1.562" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanized steel construction, ensuring long-term reliability in harsh industrial environments.
• Enhanced load distribution due to the 4" square design, preventing surface damage and maintaining joint integrity under heavy loads.
• Precise compatibility with 1 1/2" screws via the 1.562" inner diameter, ensuring secure and accurate fastening alignment.
• Exceptional durability from Rockwell B40 hardness, providing resistance to deformation under high-stress applications.
• Consistent thickness (0.220-0.280") for uniform pressure application and reliable performance in repetitive assembly tasks.
• Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements for industrial use.
• Versatile industrial application in construction and mechanical settings, offering reliable fastening for heavy-duty equipment and structures.

Professional Applications & Engineering Value

This galvanized steel square washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load distribution. The zinc coating provides a protective barrier against moisture and chemicals, extending service life in outdoor or corrosive environments like construction sites and machinery. Its 4" width and square shape maximize surface contact, reducing point loads and preventing material fatigue in structural connections. Ideal for use with 1 1/2" screws, it ensures precise alignment in heavy-duty assemblies, from steel frameworks to mechanical equipment, delivering consistent performance where reliability is critical. The Rockwell B40 hardness further enhances resistance to wear, making it a dependable choice for high-stress industrial applications.

Specification Summary & Compliance

This washer adheres to standard inch measurements with an inner diameter of 1.562", thickness range of 0.220-0.280", and width of 4", ensuring compatibility with 1 1/2" screws. Manufactured from galvanized steel with a hardness of Rockwell B40, it meets industry requirements for dimensional accuracy and mechanical strength. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) as of January 17, 2023, supporting safe and sustainable industrial use.