S-90377A165 0.344" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life
• Precise dimensional fit with 0.344" inner diameter and 1.5" outer diameter, ensuring reliable performance for 5/16" screw applications
• Enhanced load distribution due to the flat washer design, minimizing surface pressure and preventing material damage
• Consistent thickness range of 0.050-0.080" for uniform spacing and secure fastening in assemblies
• Compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility for industrial use
• Durable stainless steel construction offering long-term reliability without frequent replacements
• Versatile inch system compatibility, making it easy to integrate into existing machinery and equipment

Professional Applications & Engineering Value

These Black-Oxide 18-8 Stainless Steel flat washers are engineered to address common industrial challenges such as corrosion-induced failures and inconsistent load bearing. The black-oxide surface treatment enhances the natural corrosion resistance of 18-8 stainless steel, making these washers suitable for demanding environments like marine, chemical processing, and outdoor equipment. With precise dimensions including a 0.344" inner diameter and 1.5" outer diameter, they provide a secure fit for 5/16" screw applications, reducing the risk of loosening under vibration or thermal cycling. This reliability supports critical assemblies in machinery, automotive, and construction sectors, where corrosion-resistant washers help minimize maintenance downtime and extend the lifespan of connected components.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.344", outer diameter of 1.5", and thickness ranging from 0.050" to 0.080", designed for use with 5/16" screw sizes in inch measurement systems. Manufactured from Black-Oxide 18-8 Stainless Steel, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial applications.