S-90377A196 0.406" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh or outdoor environments.
• Precise fit for 3/8" screws with a 0.406" inner diameter, ensuring secure fastening and load distribution.
• Durable construction with a 1" outer diameter and 0.110-0.140" thickness for reliable performance under pressure.
• Enhanced surface protection due to the black-oxide finish, reducing wear and extending service life.
• Compliance with strict regulations, meeting RoHS 3 and REACH standards for safe industrial use.
• Versatile inch system compatibility, making it easy to integrate into existing assembly setups.
• Cost-effective maintenance by minimizing replacement needs in demanding applications.

Professional Applications & Engineering Value

These Black-Oxide 18-8 Stainless Steel flat washers are engineered to address common industrial challenges, such as corrosion in humid or chemical-exposed settings. The 18-8 stainless steel material provides inherent strength and rust resistance, while the black-oxide coating adds an extra layer of defense against abrasion and environmental factors. With a precise 0.406" ID and 1" OD, they ensure even load distribution and prevent loosening in 3/8" screw applications, commonly found in machinery, construction, and automotive assemblies. This combination reduces downtime and maintenance costs, offering long-term reliability for heavy-duty industrial washers needs.

Specification Summary & Compliance

This flat washer adheres to standard inch system measurements, with an inner diameter of 0.406", outer diameter of 1", and thickness ranging from 0.110" to 0.140". It is designed for use with 3/8" screws and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial compliance.