S-92538A340 0.203" ID x 0.812" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Precise 82° countersink angle ensures a flush, professional finish with flat-head screws, eliminating protrusions.
• Optimized for No. 10 screws with a 0.203" inner diameter for secure, vibration-resistant fastening.
• Enhanced load distribution from the 0.812" outer diameter, reducing surface pressure and material stress.
• Consistent performance guaranteed by Rockwell B83 hardness, providing excellent durability and wear resistance.
• Full regulatory compliance with RoHS 3 and REACH, ensuring safe, environmentally responsible use in global markets.
• Dimensional stability with a thickness range of 0.130-0.151", accommodating slight variations for reliable assembly.

Professional Applications & Engineering Value

This 82° countersunk washer is engineered to solve common industrial challenges, such as fastener loosening and surface damage. Made from 18-8 stainless steel, it offers exceptional corrosion resistance, making it suitable for outdoor, marine, and chemical-exposed applications. The precise countersink angle and inch-based dimensions ensure seamless integration with No. 10 screws, providing a smooth, flush finish that enhances aesthetics and safety in machinery, electronics, and structural assemblies. Its robust Rockwell B83 hardness withstands high-stress conditions, reducing maintenance needs and extending service life in demanding environments like automotive, aerospace, and construction.

Specification Summary & Compliance

This washer adheres to standard inch measurements, with an ID of 0.203", OD of 0.812", and thickness of 0.130-0.151", ensuring precise fit and function. It is manufactured to common industrial specifications for countersunk washers, including the 82° angle for compatibility with standard flat-head screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting stringent environmental and safety standards for hazardous substances, making it a reliable choice for global supply chains.