S-95140A179 1 1/4"-12 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 vibration resistance with fine UNF threads and left-hand threading, ideal for applications where standard right-hand threads may loosen under counter-rotational forces.
- High tensile strength and durability from Grade 5 steel construction, ensuring reliable performance in heavy-duty and high-stress environments.
- Precise thread fit and secure fastening with Class 2B thread tolerance, reducing the risk of cross-threading and providing consistent engagement.
- Easy installation and removal using standard external hex drive tools, compatible with common wrenches for efficient maintenance.
- Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe use in regulated industrial sectors.
- Wide industrial applicability due to the left-hand thread design, suitable for specific machinery, rotating assemblies, and safety-critical fastening needs.
Professional Applications & Engineering Value
This Grade 5 steel hex nut with a left-hand thread and UNF fine threading addresses critical challenges in industrial settings where reverse rotation or vibrational forces are prevalent. The Class 2B thread fit ensures tight, reliable connections that resist loosening, making it ideal for machinery, automotive, and aerospace applications. Crafted from robust steel, it offers excellent fatigue resistance and longevity, while the standard hex profile allows for straightforward installation with common tools. Its left-hand thread design is particularly valuable in assemblies where right-hand threads would unscrew under operational stress, enhancing safety and reducing maintenance downtime in demanding environments.
Specification Summary & Compliance
This hex nut adheres to inch system measurements with a thread size of 1 1/4"-12 UNF and Class 2B fine thread fit for precise dimensional accuracy. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance. Manufactured to Grade 5 strength standards, it meets industry requirements for reliable, high-performance fastening in various engineering applications.
