S-90630A125 1/2"-13 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology that maintains secure fastening in high-stress environments
• Heavy-duty Grade 8 steel construction provides exceptional strength and durability for demanding industrial applications
• High-temperature performance with nylon insert rated up to 220°F, ensuring reliable operation in thermal cycling conditions
• Precise Class 2B thread fit guarantees smooth installation and optimal engagement with mating components
• Standard external hex design enables easy installation and removal with common wrench tools
• Comprehensive compliance with REACH and RoHS 3 environmental standards for global industrial use
• Coarse UNC threading provides rapid assembly and reduced cross-threading risk in production environments

Professional Applications & Engineering Value

This Grade 8 steel nylon insert locknut delivers critical vibration resistance in machinery, automotive, and heavy equipment applications where secure fastening is paramount. The 1/2"-13 UNC coarse thread with Class 2B fit ensures reliable performance in high-vibration environments, preventing costly downtime from loosened connections. The nylon insert locking mechanism creates consistent friction that maintains clamp load without damaging threads, while the external hex drive facilitates efficient installation in confined spaces. Engineered to withstand temperatures up to 220°F, this heavy-duty solution addresses common industrial challenges of thermal expansion and mechanical stress.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 1/2"-13 UNC coarse threads and Class 2B thread fit for optimal compatibility. Features a 3/4" hex width and 19/32" height profile with right-hand threading. This locknut meets Grade 8 strength classification requirements and is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations for industrial applications worldwide.