S-90481A245 0.25" ID x 1" OD Oversized 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 0.25" ID and 1" OD ensuring perfect alignment with No. 12 screws
• Optimized load distribution through controlled 0.051-0.080" thickness range, preventing surface damage
• Full regulatory compliance with RoHS 3 and REACH standards, meeting international environmental requirements
• Heavy-duty performance in industrial applications due to robust steel material construction
• Simplified inventory management with inch system measurements compatible with standard North American specifications

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The zinc plating creates a protective barrier against moisture and chemical exposure, significantly reducing failure rates in outdoor equipment, electrical enclosures, and manufacturing machinery. With exact 0.25" ID compatibility for No. 12 screws, these washers eliminate installation issues while the 1" OD provides optimal surface coverage to prevent embedding and distribute clamping forces evenly. This combination addresses common industrial pain points including fastener loosening, material deformation, and premature corrosion failure in assembly applications.

Specification Summary & Compliance

Manufactured to standard inch dimensions with 0.25" internal diameter, 1" outer diameter, and 0.051-0.080" thickness range for consistent performance. These flat washers comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restriction of hazardous substances. Designed specifically for use with No. 12 screw sizes in industrial and commercial applications.