S-2741N12 0.343" ID x 0.75" OD Tab Lock Washers

Key Features & Benefits at a Glance

• Superior Vibration Resistance - Tab lock design prevents loosening under dynamic loads, ensuring long-term joint integrity
• Corrosion-Resistant Protection - Zinc-plated steel construction provides excellent rust prevention in demanding industrial environments
• Precision Fit Guarantee - 0.343" ID and 0.75" OD dimensions ensure perfect alignment with 5/16" fasteners for optimal performance
• Enhanced Assembly Security - Positive locking mechanism eliminates the need for additional locking devices, saving installation time
• Durable Material Construction - Steel base material with 0.036" thickness delivers reliable strength and repeated use capability
• Environmental Compliance Ready - REACH compliant manufacturing ensures safe usage across regulated industries
• Universal Compatibility - Inch system measurements provide seamless integration with standard North American equipment and machinery

Professional Applications & Engineering Value

This tab lock washer delivers exceptional engineering value in applications where vibration-induced loosening compromises assembly integrity. The zinc-plated steel construction provides dual benefits: the steel core ensures mechanical strength while the zinc coating offers corrosion resistance in harsh environments. The precisely engineered 0.343" ID and 0.75" OD dimensions guarantee perfect fitment with 5/16" screws, eliminating play and misalignment issues. The tab locking mechanism actively prevents rotation, making it ideal for automotive assemblies, industrial machinery, electrical enclosures, and construction equipment where reliable fastening is critical. The 0.036" thickness provides optimal spring tension without compromising space constraints in compact assemblies.

Specification Summary & Compliance

This tab lock washer features inch system measurements with precise dimensional tolerances: 0.343" inner diameter, 0.75" outer diameter, and 0.036" thickness specifically engineered for 5/16" screw applications. The washer maintains REACH compliance (EC 1907/2006) with current substance restrictions as of January 17, 2022, ensuring environmental responsibility. Manufactured from zinc-plated steel, this locking washer provides reliable anti-rotation performance in mechanical fastening systems requiring secure, vibration-resistant connections.