S-93425A250 3/4"-16 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Secure left-hand thread engagement prevents accidental loosening in counter-rotating machinery applications
- Precision Class 2B thread fit ensures consistent mating with UNF fasteners for vibration-resistant assemblies
- Standard external hex profile enables quick installation with common wrench tools, reducing assembly time
- Grade 2 strength certification provides reliable performance for medium-duty mechanical applications
- Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing
- Fine thread spacing (16 TPI) delivers superior clamping force distribution across connected components
Professional Applications & Engineering Value
This left-hand thread hex nut solves critical reverse-rotation challenges in industrial machinery where standard right-hand threads would naturally loosen. The zinc-plated steel construction provides essential corrosion protection for equipment exposed to moisture, chemicals, or outdoor elements. With its UNF fine thread configuration and Class 2B fit, this fastener maintains precise torque retention in high-vibration applications such as rotating shafts, conveyor systems, and power transmission equipment. The external hex drive design ensures compatibility with standard socket sets and wrenches, streamlining maintenance procedures while the left-hand threading specifically addresses safety concerns in applications where counter-clockwise rotation occurs.
Specification Summary & Compliance
This hex nut features 3/4"-16 UNF left-hand threads with Class 2B thread fit tolerance, ensuring precise engagement with mating components. Manufactured to industry standards for external hex fasteners, it measures 1 1/8" across flats and 41/64" in height. The product carries Grade 2 strength certification and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for regulated industrial applications.
