S-93413A270 0.406" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with a black protective coating, extending service life in humid or chemically aggressive environments.
• Reliable load distribution thanks to the 1.25" OD and 0.406" ID, which helps prevent surface damage and loosening under 3/8" fasteners.
• Consistent mechanical performance with Grade 2 steel construction, offering dependable strength for a wide range of general industrial applications.
• Precision dimensional control ensures easy installation and a secure fit, minimizing assembly time and improving joint integrity.
• Compliance with major environmental regulations including RoHS 3 and REACH, making them suitable for use in regulated industries and global supply chains.
• Durable construction with a thickness ranging from 0.051" to 0.084", providing robust support and vibration resistance in heavy-duty assemblies.

Professional Applications & Engineering Value

This black corrosion-resistant flat washer is engineered to address common failure points in industrial assemblies, such as galvanic corrosion and stress concentration. The black corrosion-resistant coating on Grade 2 steel provides a durable barrier against moisture, chemicals, and atmospheric exposure, making it ideal for outdoor equipment, machinery, and structural frameworks. Its precise 1.25" OD and 0.406" ID ensures even pressure distribution under 3/8" screws, reducing the risk of bolt loosening and material fatigue. By integrating this flat washer into your design, you enhance the longevity and reliability of connections in demanding environments, from construction to automotive applications, while meeting strict RoHS and REACH compliance standards for safe, sustainable manufacturing.

Specification Summary & Compliance

This washer conforms to standard inch measurements with an Inner Diameter of 0.406", Outer Diameter of 1.25", and Thickness ranging from 0.051" to 0.084", designed for use with 3/8" screw sizes. It is manufactured from Grade 2 steel and features a black corrosion-resistant coating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international industrial applications.