S-92908A414 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 100° countersink angle ensures flush mounting with No. 10 screws for clean, professional assemblies
• Enhanced load distribution from 0.812" OD and 0.203" ID, reducing surface stress and preventing material damage
• Consistent performance guaranteed by Rockwell 15N80 hardness, maintaining dimensional stability under heavy loads
• Reliable thickness range of 0.130-0.151" provides uniform compression and vibration resistance in dynamic applications
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global industrial supply chains
• Optimized for inch-system fastening, delivering seamless compatibility with standard No. 10 screw assemblies

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 100° countersunk washers solve critical assembly challenges by providing reliable sealing and stress distribution. The Black-Oxide Steel construction offers exceptional corrosion resistance, making them ideal for outdoor equipment, machinery, and automotive components exposed to moisture and chemicals. With precise inch-system dimensions (0.203" ID x 0.812" OD), they eliminate play and ensure perfect alignment with No. 10 screws, reducing installation time and preventing joint failure. The hardened Rockwell 15N80 material withstands repeated torque cycles, while the controlled thickness maintains consistent clamping force in vibration-prone environments, delivering long-term reliability for heavy-duty fastening systems.

Specification Summary & Compliance

This countersunk washer features standard inch-system dimensions with 0.203" internal diameter, 0.812" outer diameter, and thickness ranging 0.130-0.151". Manufactured to precise engineering tolerances with a 100° countersink angle for optimal screw seating. The Black-Oxide Steel construction meets Rockwell 15N80 hardness specifications for durability. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial applications.