S-97135A443 1"-8 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains locking capability even in high-vibration environments
• Exceptional strength performance with Grade 8 classification, ideal for heavy-duty industrial applications requiring maximum load capacity
• Enhanced durability and corrosion resistance provided by black-oxide steel finish, extending service life in demanding conditions
• Reliable high-temperature performance with nylon insert maintaining effectiveness up to 220°F (104°C)
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Precise thread engagement through UNC Class 2B coarse threads ensuring secure fastening in various applications
• Environmental compliance assurance meeting both REACH and RoHS 3 standards for industrial safety requirements

Professional Applications & Engineering Value

This Grade 8 heavy-duty locknut delivers exceptional engineering value through its robust black-oxide steel construction and advanced nylon insert locking technology. The combination addresses critical industrial challenges where vibration-induced loosening compromises assembly integrity. The 1"-8 UNC coarse thread profile with Class 2B fit ensures rapid installation while maintaining precise thread engagement across multiple cycles. Engineered for demanding applications including heavy machinery, automotive assemblies, and structural frameworks, this external hex locknut provides reliable performance where thermal cycling and dynamic loads are present. The nylon insert's 220°F temperature rating makes it suitable for environments where elevated temperatures would compromise conventional locking mechanisms, while the industrial-grade material ensures long-term reliability in corrosive or high-stress conditions.

Specification Summary & Compliance

This heavy-duty locknut features precise UNC 1"-8 coarse threads with Class 2B thread fit for optimal engagement and vibration resistance. The external hex drive configuration (1 5/8" width) ensures compatibility with standard installation tools. Manufactured to meet Grade 8 strength classification requirements, this component delivers exceptional mechanical performance. Compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) standards ensures adherence to international environmental and safety regulations for industrial applications.