S-91875A281 3-48 Cap Nuts
Cap 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 corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Reliable coarse thread engagement with UNC 3-48 sizing for faster assembly and reduced cross-threading risks
- Precise Class 2B thread fit ensuring consistent performance and vibration resistance in demanding applications
- External hex drive design for secure tool grip and efficient installation with standard wrenches
- Compact 1/4" profile providing space-saving solutions without compromising structural integrity
- RoHS 3 compliance meeting strict environmental regulations for global industrial supply chains
- Right-hand thread orientation delivering intuitive installation compatible with standard rotation practices
Professional Applications & Engineering Value
Engineered for industrial durability, this zinc-plated steel cap nut solves critical fastening challenges where corrosion resistance and thread reliability are paramount. The UNC coarse thread profile with Class 2B fit maintains secure connections in high-vibration environments like machinery assemblies, automotive components, and electrical enclosures. The external hex drive enables rapid installation with common tools, while the zinc plating creates a protective barrier against moisture and chemical exposure. Measuring 1/4" in both width and height, this cap nut provides a finished appearance while protecting threads from damage in transportation equipment, manufacturing fixtures, and structural frameworks where inch-system fasteners are specified.
Specification Summary & Compliance
This 3-48 UNC cap nut features Class 2B thread fit per Unified Thread Standard specifications with coarse thread spacing. Manufacturing complies with RoHS 3 (2015/863/EU) requirements under exemption 6(a)-I for lead as steel alloying element. Dimensional accuracy includes 1/4" width, 1/4" height, and 5/32" thread depth within standard inch measurement system tolerances for consistent performance in industrial applications.
