S-95140A127 3/8"-16 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Grade 5 steel construction, ensuring reliable performance under high stress.
• Secure reverse-thread locking provided by the left-hand thread direction, preventing loosening in rotating machinery.
• Superior thread engagement and durability from the UNC coarse thread profile, resistant to cross-threading and wear.
• Precise and consistent fit guaranteed by the Class 2B thread fit, enabling smooth assembly and disassembly.
• Broad tool compatibility and easy installation with the standard external hex drive and 9/16" width.
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for safe use in regulated industries.
• Robust construction for long service life with a 21/64" height, providing ample material for repeated use.

Professional Applications & Engineering Value

This Grade 5 Steel Left Hand Hex Nut is engineered to address critical challenges in industrial settings where standard right-hand threads may loosen due to counter-rotational forces. Its left-hand thread direction and UNC coarse threading make it ideal for applications such as rotating shafts, mixing equipment, and machinery where reverse motion is prevalent. The steel material and Grade 5 strength classification ensure it can withstand high tensile loads and vibration, reducing maintenance downtime. With a Class 2B thread fit, it offers optimal clearance for efficient assembly without compromising holding power, while the external hex drive allows for quick installation with common tools. This nut is a reliable solution for heavy-duty reverse thread applications, enhancing safety and operational efficiency in manufacturing, automotive, and construction industries.

Specification Summary & Compliance

This hex nut adheres to precise dimensional standards, including a 3/8"-16 UNC coarse thread with Class 2B thread fit for consistent accuracy. It meets manufacturing specifications for inch-system fasteners, with a width of 9/16" and height of 21/64". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use. Additionally, it conforms to the Grade 5 strength grade under relevant standards, providing assurance of its mechanical performance in demanding environments.