S-98437A110 0.26" ID x 0.363" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress applications
• 18-8 stainless steel construction provides excellent corrosion resistance for harsh environments
• Rockwell C35 hardness rating ensures long-term durability and spring tension retention
• Precision 0.26" ID and 0.363" OD dimensions guarantee perfect fit for 1/4" screw applications
• ASME B18.21.1 compliance ensures consistent quality and reliable performance standards
• RoHS 3 and REACH compliance meets environmental regulations for global industrial use
• Standard split lock design offers easy installation and reliable locking action

Professional Applications & Engineering Value

This 18-8 stainless steel split lock washer delivers critical vibration resistance in demanding industrial environments where fastener security is paramount. The standard split lock washer type creates continuous spring tension against both the bearing surface and nut, effectively preventing loosening under dynamic loads and thermal cycling. Engineered with 0.26" ID specifically for 1/4" screw size applications, it ensures precise fitment in machinery, automotive assemblies, and electrical enclosures. The corrosion-resistant properties of 18-8 stainless steel make it ideal for outdoor equipment, marine applications, and chemical processing facilities where environmental factors would compromise ordinary washers. This combination of vibration-resistant performance and material durability solves common industrial maintenance challenges while extending equipment service life.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications including 0.26" inner diameter, 0.363" outer diameter, and 0.078" thickness, engineered for optimal performance with 1/4" fasteners. Manufactured to ASME B18.21.1 standards for consistent quality and reliability, it maintains Rockwell C35 hardness for sustained spring tension. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), meeting current environmental regulations for industrial components.