S-94077A413 1/2"-13 x 5" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with ultra-corrosion-resistant coated steel, extending service life in harsh industrial environments.
- Enhanced holding power through the five-lobe shank design, preventing loosening under vibration in steel and sheet metal assemblies.
- Efficient thread forming with Type C tapping method, creating strong threads without pre-tapping for faster installation.
- Secure external hex drive allows for high torque application, ensuring tight and reliable fastening.
- Flanged head design distributes load evenly, reducing surface damage and providing a larger bearing area.
- Coarse UNC threading offers quick installation and robust performance in various materials.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
Professional Applications & Engineering Value
This 1/2"-13 UNC hex head tapping screw is engineered for demanding applications in steel and sheet metal fabrication. Its ultra-corrosion-resistant coated steel construction combats rust and degradation, ideal for outdoor or high-moisture environments. The thread forming capability eliminates the need for separate tapping, reducing assembly time and costs while providing excellent pull-out resistance. With a five-lobe shank and flanged head, it delivers superior clamping force and vibration resistance, preventing joint failure in structural and mechanical systems. Partially threaded for precise grip, this fastener ensures reliable performance in industrial machinery, automotive, and construction projects, meeting rigorous engineering standards for durability and efficiency.
Specification Summary & Compliance
This fastener features a 1/2"-13 UNC coarse thread with Class 2A tolerance for precise fit, a five-lobe shank cross-section, and partial threading up to a minimum length of 2 1/2". It is designed for use with a 29/64" drill bit and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and adherence to international manufacturing standards.
