S-94744A287 0.469" ID x 0.875" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding environments
• Precise dimensional fit with 0.469" ID and 0.875" OD ensuring optimal load distribution for 7/16" screws
• Enhanced mechanical stability from consistent 0.056-0.071" thickness range, preventing joint loosening under vibration
• Industry-standard compliance with ASME B18.21.1 specifications for reliable performance in mechanical assemblies
• Environmental responsibility through full RoHS 3 and REACH compliance, meeting global regulatory requirements
• Versatile industrial application across machinery, construction, and equipment manufacturing sectors
• Cost-effective protection for threaded connections against surface damage and galvanic corrosion

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions for industrial fastening systems. The 0.469" inner diameter provides precise alignment with 7/16" screws, while the 0.875" outer diameter creates an optimal bearing surface to distribute clamping forces evenly. The zinc plating forms a sacrificial barrier that actively resists oxidation and galvanic corrosion in humid or chemically aggressive environments. This combination of dimensional accuracy and protective coating addresses common failure points in mechanical assemblies, including joint fatigue, surface marring, and premature corrosion. Engineered to maintain integrity under static and dynamic loads, these ASME B18.21.1 compliant washers ensure long-term reliability in heavy machinery, structural frameworks, and industrial equipment where vibration resistance and corrosion protection are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with inch system measurements: 0.469" ID, 0.875" OD, and 0.056-0.071" thickness range. 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 as of 01/17/2023. These flat washers provide consistent performance meeting industrial quality requirements for 7/16" screw applications across various sectors.