S-94744A157 0.084" ID x 0.156" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc plating that extends service life in demanding industrial environments
• Precise dimensional accuracy ensures perfect fit and consistent performance with No. 1 screws
• Enhanced load distribution through optimal 0.156" OD design that prevents surface damage and joint loosening
• Industry-standard compliance with ASME B18.21.1 specifications guarantees reliable mechanical performance
• Environmental regulation adherence through RoHS 3 and REACH compliance for global supply chain integration
• Durable steel construction provides excellent strength-to-weight ratio for long-term fastener integrity
• Consistent thickness tolerance (0.022-0.028") ensures uniform clamping force in assembly applications

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The ASME B18.21.1 compliant construction ensures reliable performance in industrial applications requiring No. 1 screw compatibility, from electrical enclosures to precision machinery. The zinc plating creates a sacrificial barrier that actively protects against oxidation, while the carefully calibrated inner diameter (0.084") and outer diameter (0.156") provide optimal bearing surface distribution. This combination addresses common assembly challenges including surface marring, joint relaxation, and environmental degradation - making these flat washers ideal for maintenance operations, OEM manufacturing, and repair applications where long-term fastener integrity is non-negotiable.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with precise dimensional tolerances: 0.084" inner diameter, 0.156" outer diameter, and thickness range of 0.022-0.028". These inch system washers maintain strict compliance with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel, and full REACH (EC 1907/2006) compliance as of January 17, 2023. The zinc-plated steel construction ensures consistent performance across industrial applications requiring No. 1 screw compatibility.