S-94744A201 0.084" ID x 0.219" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from zinc plating, extending service life in humid or demanding environments
• Precise dimensional fit with 0.084" ID and 0.219" OD, ensuring reliable load distribution for No. 1 screws
• Enhanced durability through zinc-plated steel construction, resisting wear in repetitive assembly operations
• Industry-standard compliance with ASME B18.21.1, guaranteeing consistent performance and interchangeability
• Environmental regulation adherence via RoHS 3 and REACH compliance, supporting sustainable manufacturing practices
• Optimized thickness range (0.022-0.028") providing flexibility while maintaining structural integrity under compression
• Broad industrial compatibility with inch-system equipment, simplifying inventory for maintenance and production lines

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical protection against galvanic corrosion and surface degradation in electrical enclosures, machinery assemblies, and outdoor equipment. The ASME B18.21.1 compliant dimensions ensure uniform stress distribution, preventing fastener loosening under vibration while the 0.084" ID provides precise alignment with No. 1 screws. Engineers specify these RoHS and REACH compliant washers for automotive subassemblies and industrial control systems where regulatory conformity and long-term reliability are paramount. The zinc coating acts as a sacrificial layer, significantly reducing maintenance intervals in corrosive atmospheres.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with inch-system dimensions: 0.084" inner diameter, 0.219" outer diameter, and 0.022-0.028" thickness range. Full compliance with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) SVHC requirements as of January 2023. Designed specifically for No. 1 screw applications with zinc-plated steel construction.