S-93960A101 0.125" ID x 0.312" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from chrome plating for extended service life in harsh environments
• Precise dimensional accuracy with 0.125" ID and 0.312" OD ensures perfect fit for No. 4 screw applications
• Optimized load distribution through controlled 0.025-0.040" thickness for enhanced joint integrity
• Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for global market acceptance
• Durable steel construction provides reliable performance in demanding industrial applications
• Easy installation and maintenance with standard SAE flat washer design for efficient assembly processes

Professional Applications & Engineering Value

These chrome plated steel flat washers deliver exceptional engineering value across multiple industrial sectors. The SAE flat washer design, manufactured to ASME B18.21.1 standards, provides critical load distribution and surface protection for No. 4 screw fastening applications. The chrome plating creates a durable barrier against corrosion, significantly extending component life in environments exposed to moisture, chemicals, or temperature variations. With precise 0.125" ID x 0.312" OD dimensions and controlled thickness, these washers prevent joint loosening, reduce stress concentration, and maintain bolt preload in automotive assemblies, electrical enclosures, machinery, and precision equipment where reliable fastening is paramount.

Specification Summary & Compliance

This SAE flat washer features inch system dimensions with 0.125" inner diameter, 0.312" outer diameter, and 0.025-0.040" thickness range. Manufactured in compliance with ASME B18.21.1 standard specifications for flat washers, ensuring dimensional accuracy and performance reliability. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) environmental regulations, confirming adherence to the latest substance restriction requirements for industrial components.