S-93031A148 4-40 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 with 316 stainless steel construction, ideal for harsh environments like marine or chemical processing.
- Enhanced durability in high-stress applications due to coarse UNC thread spacing and Class 2B thread fit, ensuring reliable, vibration-resistant connections.
- Space-saving thin profile (1/16" height) allows for use in compact assemblies without compromising strength.
- Easy installation and removal with left-hand thread direction and external hex drive, providing secure fastening in reverse-thread systems.
- Wide compatibility with 4-40 UNC coarse threads, making it versatile for various industrial equipment and machinery.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe, sustainable use in global markets.
- Precise dimensional accuracy (1/4" width) for consistent performance and easy integration into existing designs.
Professional Applications & Engineering Value
This 4-40 UNC left-hand thin hex nut is engineered from 316 stainless steel to address common industrial challenges like corrosion and thread stripping. Its coarse thread spacing and Class 2B thread fit provide excellent resistance to loosening under vibration, making it ideal for reverse-thread applications in machinery, automotive, and aerospace sectors. The thin profile saves space in tight assemblies, while the external hex drive ensures quick, tool-friendly installation. By combining corrosion-resistant properties with robust thread standards, this nut delivers long-term reliability in demanding environments, reducing maintenance costs and downtime.
Specification Summary & Compliance
This hex nut features a 4-40 UNC coarse thread with Class 2B thread fit for precise dimensional tolerance, ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards. Manufactured to standard inch measurements, it includes a left-hand thread direction and external hex drive for reliable industrial use.
