S-93020A781 M8 x 19 mm 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
- Superior corrosion resistance with black-oxide steel coating, extending service life in harsh industrial environments.
- Precise Class 6H thread fit ensures reliable, vibration-resistant connections for consistent assembly performance.
- External hex drive design allows for easy installation and removal using standard tools, reducing labor time.
- Fully threaded M8 x 1.25 mm coarse pitch provides maximum engagement strength and quick assembly in heavy-duty applications.
- RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chains.
- Compact 14 mm width and 19 mm length offers space-efficient coupling without compromising on load-bearing capacity.
- Metric coarse threading enhances resistance to loosening under dynamic loads, ideal for machinery and structural uses.
Professional Applications & Engineering Value
This M8 black-oxide steel coupling nut is engineered to solve common industrial challenges like misalignment and thread wear in extended fastener assemblies. The fully threaded metric design with coarse 1.25 mm pitch ensures rapid installation and high tensile strength, reducing the risk of cross-threading in automated or manual setups. Its external hex drive facilitates secure tool engagement, minimizing slippage during high-torque applications in machinery, construction, and transport equipment. By combining Class 6H thread precision with a durable black-oxide finish, this coupling nut maintains integrity in corrosive or high-vibration environments, delivering long-term reliability for B2B engineering projects.
Specification Summary & Compliance
This coupling nut adheres to metric coarse thread standards with M8 x 1.25 mm dimensions and Class 6H thread fit tolerance for consistent accuracy. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe, hazardous substance-free components. The external hex drive and standard profile align with industrial fastener specifications for reliable performance in global applications.
