S-90096A365 1/2"-13 x 3" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• High-strength thread cutting performance eliminates pre-tapping requirements in aluminum, brass, cast iron, and sheet metal
• Integrated flange design provides wider bearing surface for improved load distribution and vibration resistance
• External hex drive delivers maximum torque transmission and prevents tool slippage during installation
• Coarse UNC threading ensures rapid installation and superior holding power in various materials
• Full threading along 3" length offers complete engagement depth for maximum fastening security
• Blunt tip design facilitates precise alignment and reduces material deformation during installation

Professional Applications & Engineering Value

These heavy-duty flanged hex tapping screws deliver exceptional engineering value by solving critical fastening challenges in aluminum, brass, cast iron, and sheet metal applications. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for demanding industrial environments. The thread cutting design eliminates the need for separate tapping operations, significantly reducing assembly time and labor costs. The combination of external hex drive and integrated flange ensures reliable installation under high torque conditions while distributing clamping force evenly to prevent material damage. These fully threaded tapping screws with coarse UNC threading maintain secure fastening in applications subject to vibration and dynamic loads, making them ideal for heavy machinery, structural frameworks, and industrial equipment assembly where reliability is paramount.

Specification Summary & Compliance

Manufactured to precise UNC coarse thread standards with 1/2"-13 thread size and Class 2A tolerance for consistent performance. These flanged hex tapping screws meet ASME B18.6.3 specifications (SAE J933) for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and regulatory adherence. The 3" length with fully threaded design and 0.5" thread diameter provides optimal fastening capability when used with recommended 29/64" drill bit (0.4531" diameter) for proper thread engagement in various metal substrates.