S-93960A140 0.344" ID x 0.688" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with chrome plating that protects against rust and extends service life in harsh environments
• Precise dimensional accuracy with 0.344" ID and 0.688" OD ensures perfect fit for 5/16" fasteners and uniform load distribution
• Enhanced durability through chrome plated steel construction that withstands mechanical stress and repeated assembly cycles
• Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and interchangeability in mechanical systems
• Environmental responsibility with full RoHS 3 and REACH compliance for safe use in regulated industries
• Optimal thickness range (0.051-0.080") provides flexibility for varying gap-filling and spacing requirements
• Reliable performance in SAE inch-system applications where standardized flat washers are critical for assembly integrity

Professional Applications & Engineering Value

These chrome plated steel flat washers deliver exceptional engineering value by solving critical industrial challenges. The SAE flat washer design with precise 0.344" ID and 0.688" OD dimensions ensures perfect alignment with 5/16" fasteners, preventing bolt loosening and distributing clamp load evenly across surfaces. The chrome plating provides superior corrosion resistance that withstands moisture, chemicals, and environmental exposure in automotive, machinery, and outdoor equipment applications. Manufactured to ASME B18.21.1 standards, these washers maintain dimensional consistency for reliable performance in high-vibration environments and repeated disassembly scenarios, making them ideal for maintenance operations and OEM manufacturing where industrial washers must endure demanding service conditions without compromising fastener integrity.

Specification Summary & Compliance

This SAE flat washer features precise dimensional specifications including 0.344" inner diameter, 0.688" outer diameter, and thickness range of 0.051-0.080" designed specifically for 5/16" screw size applications. Manufactured in compliance with ASME B18.21.1 standard for dimensional accuracy and performance requirements. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for hazardous substance restrictions and chemical safety in industrial components.