S-93413A220 0.281" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with a black protective coating, extending service life in harsh industrial environments.
• Reliable load distribution due to the flat design and precise dimensions (0.281" ID x 1" OD), preventing surface damage and loosening.
• Grade 2 strength classification ensures dependable performance for general-purpose and light-duty fastening applications.
• Wide thickness tolerance (0.051-0.084") allows for flexibility in assembly while maintaining consistent pressure distribution.
• Compatibility with 1/4" screws in inch measurement systems, facilitating easy integration into existing designs.
• Environmental compliance with RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.
• Durable steel construction provides long-lasting mechanical integrity under various operational stresses.

Professional Applications & Engineering Value

This 1/4" flat washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load-bearing. Crafted from black corrosion-resistant coated steel, it effectively shields against moisture, chemicals, and atmospheric exposure, making it ideal for outdoor equipment, machinery assemblies, and structural frameworks. The precise 0.281" ID and 1" OD ensure a snug fit and broad surface contact, reducing stress concentration and enhancing joint stability. Its Grade 2 strength and standardized inch dimensions support reliable performance in automotive, construction, and manufacturing sectors, where consistent fastener integrity is critical to operational safety and efficiency.

Specification Summary & Compliance

This washer features an internal diameter of 0.281", outer diameter of 1", and thickness ranging from 0.051" to 0.084", adhering to standard inch measurement tolerances. It is designed for use with 1/4" screws and complies with Grade 2 strength requirements. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial applications.