S-90790A417 3/4"-10 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 black-oxide steel finish, extending service life in harsh industrial environments.
- Enhanced load distribution from the extra-wide high profile design, reducing surface pressure and material fatigue.
- Reliable coarse threading (UNC) ensures quick assembly and reduced cross-threading risks in high-vibration applications.
- Precise Class 2B thread fit guarantees consistent engagement and secure fastening with mating components.
- Heavy-duty external hex drive provides high torque capability for demanding mechanical assemblies.
- Compliance with REACH and RoHS 3 meets international environmental standards for safe industrial use.
- Robust dimensions (1 1/4" width, 1 3/8" height) offer substantial grip and structural integrity for large-scale equipment.
Professional Applications & Engineering Value
This black-oxide steel cap nut is engineered to address critical challenges in heavy machinery, construction, and automotive sectors where corrosion resistance and durability are paramount. The extra-wide high profile design distributes clamping force evenly, preventing joint loosening under dynamic loads. With UNC coarse threads and Class 2B fit, it ensures rapid installation and reliable performance in high-vibration environments, reducing maintenance downtime. The external hex drive allows for efficient torque application using standard tools, making it ideal for industrial assembly lines and structural frameworks requiring robust, long-lasting fastening solutions.
Specification Summary & Compliance
This cap nut adheres to UNC thread standards with a Class 2B thread fit for precise dimensional accuracy. It is manufactured from black-oxide steel with a thread size of 3/4"-10 and coarse spacing. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, including exemption 6(a)-I for lead as an alloying element in steel, ensuring environmental and safety standards are met for industrial applications.