S-91083A005 0.125" ID x 0.312" OD SAE Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution - The precise 0.312" outer diameter and flat design effectively spread pressure, reducing surface stress and preventing damage to assembled components.
• Secure Fastening for No. 4 Screws - With a 0.125" inner diameter, this washer ensures a snug fit, minimizing loosening and maintaining joint integrity in vibration-prone environments.
• Durable Steel Construction - Made from robust steel, it offers excellent resistance to wear and corrosion, ensuring long-term reliability in demanding industrial applications.
• Consistent Thickness Tolerance - The 0.020-0.040" thickness range provides uniform spacing and reliable performance, facilitating easy installation and consistent clamping force.
• SAE Standard Compliance - Adheres to SAE specifications, guaranteeing interchangeability and compatibility with other standard components in mechanical systems.
• Versatile Industrial Use - Ideal for a wide range of assemblies, from machinery to equipment, offering dependable performance in various mechanical fastening scenarios.

Professional Applications & Engineering Value

This SAE flat washer is engineered to address common industrial fastening challenges, such as uneven load distribution and component wear. Crafted from durable steel, it provides a reliable barrier that prevents screw heads from embedding into softer materials, thereby extending the life of assemblies. The precise 0.125" inner diameter and 0.312" outer diameter ensure optimal fit for No. 4 screw applications, reducing the risk of loosening under vibration or dynamic loads. Commonly used in industrial and mechanical assemblies, these washers enhance stability in equipment like motors, brackets, and enclosures, making them essential for maintaining structural integrity and operational safety.

Specification Summary & Compliance

This washer features an inner diameter of 0.125", outer diameter of 0.312", and thickness range of 0.020-0.040", manufactured to SAE standards in the inch system. It ensures dimensional accuracy for reliable performance in various applications. While hardness is not rated, the steel material provides consistent durability. The product complies with industry specifications for flat washers, supporting quality assurance in mechanical fastening without specific RoHS or REACH declarations noted.