S-98437A150 0.894" ID x 1.291" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening under dynamic loads, ensuring long-term joint integrity
• Excellent corrosion resistance from 18-8 stainless steel construction maintains performance in harsh industrial environments
• Optimized dimensional accuracy with 0.894" ID and 1.291" OD provides perfect fit for 7/8" screw applications
• Enhanced durability through Rockwell C35 hardness rating withstands repeated assembly cycles without deformation
• Industry-standard compliance with ASME B18.21.1 ensures reliable performance and interchangeability
• Heavy-duty 0.234" thickness delivers maximum spring tension for critical locking applications
• Environmental regulation compliance with RoHS 3 and REACH supports sustainable manufacturing practices

Professional Applications & Engineering Value

This 18-8 stainless steel split lock washer addresses critical vibration-induced fastener failure in heavy machinery, automotive assemblies, and structural applications. The split lock design creates continuous spring tension that compensates for thermal expansion and mechanical stress, while the Rockwell C35 hardness ensures the washer maintains its locking force through multiple installation cycles. 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 degrade ordinary fasteners. Engineered to ASME B18.21.1 standards, this washer provides reliable performance in high-vibration environments where secure fastening is critical to operational safety and equipment longevity.

Specification Summary & Compliance

This split lock washer features precision dimensions of 0.894" inner diameter, 1.291" outer diameter, and 0.234" thickness specifically designed for 7/8" screw applications. Manufactured to ASME B18.21.1 standards with Rockwell C35 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. The inch system measurement ensures compatibility with North American machinery and equipment specifications.