S-92908A175 0.281" ID x 2" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish for extended service life in harsh industrial environments
• Precise 82° countersink angle ensures flush mounting with standard flat-head screws for clean, professional installations
• Exceptional hardness rating (Rockwell 15N80) maintains structural integrity under heavy loads and vibration
• Optimized dimensional specifications (0.281" ID x 2" OD) provide perfect fit for 1/4" screws with maximum bearing surface
• Heavy-duty thickness range (0.271-0.291") delivers reliable load distribution and prevents surface damage
• Full regulatory compliance with RoHS 3 and REACH standards ensures safe use in regulated industrial applications
• Inch system compatibility simplifies integration with existing North American equipment and fastener systems

Professional Applications & Engineering Value

These 82° countersunk washers deliver critical engineering solutions where flush surface mounting and corrosion resistance are paramount. The black-oxide steel construction provides superior protection against rust and oxidation in demanding environments including outdoor equipment, marine applications, and industrial machinery. The precisely engineered countersink angle ensures perfect alignment with standard flat-head screws, eliminating protrusions that could interfere with moving parts or create safety hazards. With their heavy-duty thickness and Rockwell 15N80 hardness, these washers maintain dimensional stability under extreme pressure and vibration, preventing joint loosening and material deformation in critical fastening applications across construction, manufacturing, and heavy equipment sectors.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.281" inner diameter, 2" outer diameter, and thickness ranging 0.271-0.291" for consistent performance with 1/4" fasteners. The 82° countersink angle conforms to industry standards for flat-head screw applications. These black-oxide steel washers feature Rockwell 15N80 hardness rating for optimal durability. Full compliance with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) regulations ensures adherence to international environmental and safety standards for industrial components.