S-90268A219 3/8"-16 x 4" Coupling Nuts
Coupling 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
- Extended reach capability with 4" extra long profile for connecting threaded rods or bolts in hard-to-access assemblies
- Superior corrosion resistance through 18-8 stainless steel construction, ideal for harsh industrial environments
- Secure installation and removal with external hex drive design providing reliable tool engagement
- Optimized thread engagement featuring partially threaded design with Class 2B fit for precise, vibration-resistant connections
- Broad compatibility with 3/8"-16 UNC coarse threading, matching standard industrial components
- Environmental compliance assurance meeting RoHS 3 and REACH standards for regulated applications
- Enhanced structural integrity with 5/8" width providing substantial bearing surface for load distribution
Professional Applications & Engineering Value
This extra long coupling nut solves critical spacing challenges in industrial assembly where standard fasteners fall short. The 18-8 stainless steel construction delivers exceptional corrosion resistance for demanding environments including chemical processing, marine applications, and outdoor structures. The partially threaded design with Class 2B thread fit ensures precise alignment while maintaining vibration resistance in dynamic load conditions. The external hex drive allows for high-torque installation using standard wrenches, making it ideal for construction, machinery assembly, and infrastructure projects where UNC coarse threading provides reliable engagement even in dirty or debris-filled environments. The extended 4" length enables connections across gaps where direct bolt-to-bolt joining isn't feasible.
Specification Summary & Compliance
This coupling nut features 3/8"-16 UNC coarse threading with Class 2B thread fit for standard industrial compatibility. The partially threaded design provides minimum 5/8" thread length with right-hand thread direction. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications. Dimensions include 4" length and 5/8" width across flats for proper tool engagement.
