S-91034A110 3/8"-16 x 1" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional Corrosion Resistance: The black-oxide steel finish provides a durable protective layer, extending the nut's service life in demanding industrial environments.
• Superior Tensile Strength: Manufactured from high-grade steel, this nut ensures reliable, high-strength connections for heavy-duty applications.
• Wide Compatibility & Easy Assembly: The coarse 3/8"-16 UNC thread profile and Class 2B fit offer excellent engagement with a wide range of standard male threads, speeding up installation.
• Secure, Non-Slip Fastening: The external hex drive style allows for high torque application with standard wrenches, preventing slippage and ensuring a tight, vibration-resistant joint.
• Full-Length Threading for Maximum Engagement: Being fully threaded along the entire 1" length provides greater flexibility in joint placement and increases the load-bearing surface area.
• Regulatory Compliance for Global Supply Chains: Meets RoHS 3 and REACH standards, ensuring the nut is free from hazardous substances and suitable for use in regulated markets.
• Optimized Dimensions for Structural Integrity: The 1" length and 11/16" width provide a robust profile that resists bending and distributes load effectively.

Professional Applications & Engineering Value

This black-oxide steel coupling nut is engineered to solve critical challenges in industrial assembly and construction. Its UNC coarse threading and Class 2B thread fit ensure rapid, reliable mating with corresponding threaded rods or studs, significantly reducing assembly time in high-volume production lines. The external hex drive facilitates easy installation and removal with common tools, even in confined spaces. The black-oxide surface treatment is not just for appearance; it provides a vital defense against rust and corrosion, making this fully threaded coupling nut ideal for applications exposed to moisture, chemicals, or outdoor elements, such as in machinery, structural frameworks, and automotive assemblies. This combination of features delivers long-term reliability and reduces maintenance needs.

Specification Summary & Compliance

This coupling nut conforms to the Unified National Coarse (UNC) thread standard with a Class 2B thread fit, ensuring precise and consistent engagement. The dimensional accuracy is maintained with a length of 1" and a width across flats of 11/16". The product is manufactured in full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industrial markets.