S-92117A780 5/8"-18 Hex Nuts
Hex Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance from high-quality brass material, ideal for harsh environments and extended service life
- Reliable reverse-thread performance with left-hand UNF fine thread, preventing loosening in counter-rotational applications
- Space-saving thin profile design (3/8" height) for use in confined assemblies without compromising strength
- Easy installation and removal with standard external hex drive, compatible with common wrenches and sockets
- Precise Class 2B thread fit ensuring smooth engagement and consistent clamping force with mating components
- Full regulatory compliance with REACH and RoHS 3 standards, meeting strict industrial safety and environmental requirements
- Wide wrench flat surface (15/16" across flats) providing secure tool engagement and reducing slippage risk
Professional Applications & Engineering Value
This 5/8"-18 UNF left-hand thread brass hex nut delivers critical engineering value in applications where standard right-hand threads would unscrew due to rotational forces. The brass construction offers excellent corrosion resistance in plumbing, marine, and electrical systems, while the thin profile accommodates space-constrained assemblies. The UNF fine thread provides superior vibration resistance compared to coarse threads, making it ideal for precision equipment, machinery, and automotive components requiring reverse-thread security. With Class 2B thread fit and external hex drive, it ensures reliable installation torque and maintenance accessibility in industrial settings.
Specification Summary & Compliance
This thin profile hex nut features precise 5/8"-18 UNF left-hand fine threads with Class 2B thread fit per ASME/ANSI standards, ensuring dimensional accuracy and interchangeability. The nut measures 15/16" across flats and 3/8" in height. It is manufactured in compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy, meeting international environmental and safety regulations for industrial components.
