S-92908A140 0.203" ID x 0.812" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, extending service life in harsh industrial environments.
• Precise 82° countersink angle ensures flush mounting with fastener heads, reducing snagging and improving safety.
• High Rockwell 15N80 hardness provides excellent wear resistance and maintains dimensional stability under load.
• Accurate 0.203" ID and 0.812" OD dimensions guarantee perfect fit for No. 10 screws, preventing loosening and misalignment.
• Optimized thickness range (0.130-0.151") offers consistent load distribution and vibration damping in assemblies.
• Full RoHS 3 and REACH compliance meets stringent international regulations for safe, sustainable industrial use.
• Durable black-oxide surface enhances aesthetic appeal while providing additional protection against rust.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these countersunk washers deliver reliable performance where precision and durability are critical. The black-oxide steel construction offers enhanced corrosion resistance, making them ideal for machinery, automotive, and outdoor equipment exposed to moisture or chemicals. The precise 82° countersink angle ensures a seamless fit with standard fastener heads, eliminating protrusions that could interfere with moving parts or pose safety hazards. With a Rockwell 15N80 hardness rating, these washers maintain integrity under high-stress conditions, reducing maintenance needs and downtime. Their compliance with RoHS and REACH standards ensures they meet global environmental and safety requirements, providing peace of mind for B2B procurement specialists sourcing heavy-duty fastening solutions.

Specification Summary & Compliance

This countersunk washer features inch system dimensions: 0.203" ID, 0.812" OD, and thickness of 0.130-0.151" for No. 10 screw size. It maintains precise manufacturing tolerances with an 82° countersink angle and Rockwell 15N80 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel alloys and REACH (EC 1907/2006) as of January 17, 2023, ensuring adherence to international environmental and safety regulations.