S-90107A005 0.125" ID x 0.312" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for marine, chemical, or outdoor applications
• Precise dimensional fit with 0.125" ID and 0.312" OD ensures secure seating and even load distribution for No. 4 screw assemblies
• Consistent thickness range (0.024-0.038") provides reliable spacing and vibration dampening in mechanical fastening systems
• Long-term durability and material integrity maintained under varying temperatures and moisture conditions
• Environmental compliance with RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices
• Broad industrial compatibility with inch-system components, simplifying sourcing and integration into existing designs

Professional Applications & Engineering Value

These 316 stainless steel flat washers deliver critical protection against galvanic and chemical corrosion, extending the service life of assemblies in demanding sectors like marine equipment, food processing, and chemical plants. The flat washer design evenly distributes clamping force, preventing surface damage and loosening under vibration—common issues in machinery and structural applications. With precise inch-system dimensions tailored for No. 4 screw sizes, these components ensure a snug fit that minimizes play and enhances joint integrity. The corrosion-resistant properties of 316 stainless steel reduce maintenance frequency and replacement costs, making them a cost-effective solution for long-term projects requiring reliability under harsh operating conditions.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.125", outer diameter of 0.312", and thickness ranging from 0.024" to 0.038", designed specifically for use with No. 4 screws in inch-based systems. It is manufactured from 316 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to strict safety and sustainability standards for industrial components.