S-90377A197 0.5" ID x 1" OD Oversized Washers
Oversized Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel with black-oxide finish, ideal for harsh industrial environments
- Enhanced durability and longevity for repeated use in demanding applications
- Precise dimensional fit with 0.5" ID and 1" OD ensuring reliable performance with 7/16" screws
- Optimal load distribution across 0.110-0.140" thickness to prevent surface damage and loosening
- Environmental compliance assurance with RoHS 3 and REACH standards for safe, sustainable operations
- Broad industrial compatibility in inch measurement system for seamless integration with existing equipment
- Reliable material integrity from stainless steel construction maintaining performance under stress
Professional Applications & Engineering Value
These black-oxide 18-8 stainless steel flat washers deliver critical protection against galvanic corrosion and chemical exposure in industrial settings. The 0.5" ID x 1" OD dimensions with controlled thickness provide consistent spacing and surface pressure distribution for 7/16" screw applications, preventing joint failure in machinery, structural assemblies, and outdoor equipment. The stainless steel material combined with black-oxide surface treatment resists rust in high-moisture environments, while the inch sizing ensures compatibility with North American industrial standards. Engineers specify these corrosion resistant washers to extend maintenance intervals and reduce lifecycle costs in manufacturing, marine, and construction projects where reliability is non-negotiable.
Specification Summary & Compliance
This flat washer features precise inch dimensions: 0.5" inner diameter, 1" outer diameter, and 0.110-0.140" thickness range for consistent performance with 7/16" screw size. Manufactured from 18-8 stainless steel with black-oxide finish for enhanced corrosion protection. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for industrial applications.
