S-90313A269 1.062" ID x 4" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel, ideal for harsh industrial environments and outdoor use.
• Exceptional load distribution with a large 4" outer diameter, protecting surfaces and preventing fastener loosening.
• Precise fit for 1" screws with a 1.062" inner diameter, ensuring secure and stable assembly.
• Robust construction with a thickness range of 0.122" to 0.145", providing reliable, long-lasting performance.
• Environmental compliance assurance, meeting RoHS 3 and REACH standards for safe, sustainable use.
• Broad industrial compatibility as an inch-system flat washer, suitable for a wide range of machinery and equipment.
• Durability without hardness rating dependency, offering consistent performance under general industrial stress.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as corrosion-induced failure and surface damage. Its corrosion-resistant material ensures longevity in demanding environments, from chemical processing to marine applications, while the large 4" OD effectively distributes load to prevent bolt head embedding and joint fatigue. The precise 1.062" ID fits standard 1" screws, maintaining alignment and reducing installation errors. As a RoHS and REACH compliant component, it supports sustainable manufacturing practices, making it a reliable choice for industrial washers in assembly lines, heavy machinery, and infrastructure projects where durability and regulatory adherence are critical.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.062", outer diameter of 4", and thickness range of 0.122" to 0.145", designed for use with 1" screw sizes in inch measurement systems. It is manufactured from 18-8 stainless steel for consistent performance and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial applications.