S-98667A210 1/4"-20 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 protection with black corrosion-resistant coating, extending service life in harsh industrial environments
- Reliable coarse threading with UNC 1/4"-20 specification for faster assembly and reduced cross-threading risks
- Precision Class 2B thread fit ensuring consistent engagement and vibration resistance in demanding applications
- External hex drive design providing secure tool grip and torque transmission during installation
- Right-hand threading compatibility with standard industrial equipment and existing fastener systems
- RoHS 3 compliance meeting environmental regulations while maintaining steel alloy performance
- Optimal dimensions (7/16" width × 15/32" height) balancing strength requirements with space constraints
Professional Applications & Engineering Value
This black corrosion-resistant coated steel cap nut addresses critical challenges in industrial maintenance and equipment manufacturing. The UNC coarse thread configuration with Class 2B fit prevents binding in high-vibration environments while enabling rapid installation. The external hex drive accommodates standard wrenches for secure tightening in confined spaces. Engineered for heavy-duty applications including machinery assembly, structural frameworks, and outdoor equipment, the protective coating resists chemical exposure and atmospheric corrosion. The right-hand thread direction ensures compatibility with existing industrial systems, reducing inventory complexity while maintaining corrosion resistance in challenging operating conditions.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 1/4"-20 UNC coarse threads and Class 2B thread fit tolerance. Compliant with RoHS 3 (2015/863/EU) regulations under exemption 6(a) for lead as steel alloying element. Features standard external hex drive configuration and right-hand thread direction per industrial fastener specifications. Thread depth measures 1/4" with overall dimensions of 7/16" width and 15/32" height for consistent performance across applications.