S-97149A150 5/16"-18 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
- Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life
- Reliable thread engagement with Class 2B thread fit, ensuring consistent clamping force and reducing assembly issues
- Wide compatibility with UNC coarse 5/16"-18 threads, fitting standard bolts and simplifying inventory management
- Easy installation and removal using standard wrenches on the external hex drive, saving time and labor costs
- Environmental compliance with RoHS 3 and REACH standards, meeting global regulatory requirements for industrial use
- Durable construction in a standard profile, providing high strength and resistance to vibration loosening
- Accurate dimensional specs (1/2" width, 17/64" height) for precise fit in inch-based assembly applications
Professional Applications & Engineering Value
This 5/16"-18 UNC hex nut delivers exceptional performance in demanding industrial settings where corrosion resistance and reliability are critical. Crafted from Black-Oxide 18-8 Stainless Steel, it effectively combats rust and chemical exposure, reducing maintenance frequency in automotive, machinery, and outdoor equipment. The coarse thread design and Class 2B thread fit enable quick assembly with minimal cross-threading risks, while the external hex drive allows for high-torque applications using common tools. Engineers value its consistent performance in heavy-duty fastening solutions, ensuring long-term joint integrity under vibration and load stress.
Specification Summary & Compliance
This hex nut adheres to UNC thread standards with a 5/16"-18 coarse thread and Class 2B thread fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured to standard inch system specifications, it features a right-hand thread direction and is suitable for various industrial fastening applications requiring dependable performance.
