S-94830A135 1/2"-20 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with Flex-Top locking technology that maintains secure fastening in high-stress environments
• Space-saving thin profile (21/64" height) enables installation in tight spaces where standard nuts won't fit
• Precision Class 2B thread fit ensures smooth assembly and reliable engagement with mating components
• Durable steel construction provides excellent strength and corrosion resistance for long service life
• External hex drive design allows for easy installation and removal with standard tools
• Fine thread spacing (UNF 1/2"-20) offers better adjustment control and improved load distribution
• Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This 1/2"-20 UNF thin Flex-Top locknut delivers exceptional engineering value in applications where vibration-induced loosening poses significant reliability concerns. The innovative Flex-Top locking technology creates consistent prevailing torque that maintains clamp load under dynamic conditions, making it ideal for automotive assemblies, industrial machinery, and precision equipment. The steel construction combined with fine thread spacing ensures superior fatigue resistance and precise adjustment capabilities. The thin profile design (21/64" height) solves space constraint challenges while the external hex drive facilitates efficient installation in high-volume production environments. This locknut represents an optimal solution for engineers seeking reliable vibration-resistant fastening without compromising on dimensional efficiency.

Specification Summary & Compliance

This external hex locknut features 1/2"-20 UNF fine threads with Class 2B thread fit for precise dimensional accuracy and reliable mating performance. The nut maintains a 3/4" width across flats and 21/64" height in its thin profile configuration. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring responsible production practices and material safety. The right-hand thread direction and Flex-Top locking mechanism provide consistent performance across industrial applications requiring secure, vibration-resistant fastening solutions.