S-93960A120 0.312" ID x 0.734" OD ASME B18.21.1 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from chrome-plated steel construction, extending service life in demanding environments
• Precision dimensional fit with 0.312" ID and 0.734" OD ensuring perfect compatibility with 1/4" screws
• Optimized load distribution through controlled 0.051-0.080" thickness range, preventing surface damage
• Industry-standard compliance with ASME B18.21.1 specifications for reliable mechanical performance
• Environmental regulation adherence with full RoHS 3 and REACH compliance for global supply chain integration
• Enhanced surface durability from chrome plating that resists wear in high-friction applications
• Versatile industrial application across machinery, equipment assembly, and structural fastening systems

Professional Applications & Engineering Value

These chrome-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The chrome plating creates a protective barrier against moisture, chemicals, and environmental factors that typically degrade standard washers, making them ideal for outdoor equipment, marine applications, and industrial machinery exposed to harsh conditions. Their precise 0.312" ID ensures secure seating on 1/4" screws without play or misalignment, while the 0.734" OD provides optimal surface coverage to prevent embedding and distribute clamping forces evenly. Manufactured to ASME B18.21.1 standards, these washers maintain consistent performance in vibration-prone assemblies and high-load scenarios where fastener integrity cannot be compromised.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.312" inner diameter, 0.734" outer diameter, and thickness ranging 0.051-0.080" for precise 1/4" screw compatibility. Manufactured in compliance with ASME B18.21.1 mechanical standards ensuring dimensional accuracy and performance reliability. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations covering chemical substances, making them suitable for regulated industrial markets and international procurement requirements.