S-91101A236 0.766" ID x 1.265" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments, ensuring long-term assembly integrity
• Precision-engineered dimensions (0.766" ID, 1.265" OD) provide perfect fit for 3/4" screw applications, eliminating installation issues
• Rockwell C38 hardness rating delivers exceptional durability and maintains locking performance through repeated use cycles
• ASME B18.21.1 compliance guarantees consistent quality and interchangeability across industrial applications
• Heavy-duty steel construction withstands extreme mechanical stresses while resisting corrosion in demanding conditions
• Split lock design creates continuous spring tension that compensates for thermal expansion and material relaxation
• Full regulatory compliance with RoHS 3 and REACH ensures safe usage across global markets and sensitive applications

Professional Applications & Engineering Value

This steel split lock washer addresses critical vibration-induced failure points in industrial assemblies where maintaining bolt preload is essential. The standard split lock washer type creates a spring-like action that exerts constant pressure against both the fastener and bearing surface, effectively resisting rotational loosening caused by machinery vibrations, thermal cycling, and dynamic loads. Engineered specifically for 3/4" screw applications, its precise internal diameter ensures proper seating while the hardened steel material provides reliable performance in heavy machinery, construction equipment, automotive systems, and manufacturing fixtures. The 0.188" thickness offers optimal deflection characteristics without compromising structural integrity, making it an ideal vibration resistant solution for maintenance-critical applications where downtime is unacceptable.

Specification Summary & Compliance

This precision split lock washer features exact dimensional specifications with 0.766" internal diameter, 1.265" outer diameter, and 0.188" thickness, manufactured to ASME B18.21.1 standards for consistent performance and interchangeability. The component maintains Rockwell C38 hardness throughout its service life and complies with major regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) with current SVHC compliance as of January 17, 2023. Designed specifically for use with 3/4" screws in inch measurement systems, this industrial-grade locking solution meets the stringent requirements of mechanical engineering applications where reliability and compliance are paramount.