S-91875A038 1"-8 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
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
- Reliable coarse thread design for faster assembly and reduced cross-threading risks in high-vibration applications.
- Precise Class 2B thread fit ensures smooth engagement and consistent clamping force for secure connections.
- External hex drive compatibility allows for easy installation using standard tools, improving workflow efficiency.
- RoHS 3 compliance meets environmental regulations, supporting sustainable procurement practices.
- Standard cap nut profile provides a finished appearance while protecting threads from damage and contamination.
- Right-hand threading offers intuitive installation for common assembly processes, reducing operator errors.
Professional Applications & Engineering Value
This heavy-duty 1"-8 UNC coarse thread cap nut is engineered to address critical challenges in industrial fastening, such as vibration-induced loosening and environmental degradation. The zinc-plated steel material provides excellent durability against corrosion, making it ideal for outdoor machinery, construction equipment, and automotive assemblies. Its coarse thread design ensures quick installation and robust performance in high-stress applications, while the external hex drive facilitates efficient torque application with common wrenches. By combining Class 2B thread fit precision with a standard cap profile, this nut delivers reliable sealing and thread protection, minimizing maintenance needs and downtime in demanding sectors like manufacturing and infrastructure.
Specification Summary & Compliance
This cap nut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy. It features a thread size of 1"-8, a width of 1 7/16", and a height of 1 35/64", manufactured under strict quality controls. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, ensuring alignment with environmental and safety regulations for industrial use.
