S-95140A139 7/16"-20 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
- Left-hand thread design prevents loosening in counter-rotating applications, enhancing operational safety
- Grade 5 steel construction delivers high tensile strength and reliable performance under heavy loads
- Class 2B fine thread fit ensures precise engagement and vibration resistance in critical assemblies
- External hex drive provides superior torque transmission and easy installation with standard tools
- RoHS 3 and REACH compliance guarantees environmental safety and chemical resistance for industrial use
- UNF thread standard compatibility offers seamless integration with existing inch-system components
- Standard hex profile enables quick identification and handling in fast-paced maintenance environments
Professional Applications & Engineering Value
This 7/16"-20 UNF left-hand thread hex nut addresses critical challenges in industrial settings where reverse rotation occurs. The Grade 5 steel construction provides exceptional durability against shear forces and environmental degradation, while the Class 2B fine thread maintains secure fastening under constant vibration. The left-hand threading is specifically engineered for applications where standard right-hand threads would naturally loosen, such as rotating shaft assemblies and machinery with counter-clockwise motion. Combined with the external hex drive design, this nut delivers maximum torque capability for heavy-duty equipment maintenance, manufacturing systems, and automotive applications requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
This hex nut features 7/16"-20 UNF left-hand fine threads with Class 2B thread fit for precision tolerance according to Unified Thread Standard specifications. The 11/16" width and 3/8" height dimensions ensure compatibility with standard wrench sizes. Manufacturing complies with Grade 5 strength requirements and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
