S-90096A450 1/2"-13 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced installation efficiency through external hex drive design that provides excellent torque transmission and prevents tool slippage
• Vibration-resistant locking performance with serrated flange that creates permanent bite into material surfaces, eliminating loosening
• Optimized thread engagement with UNC coarse threading and thread-cutting tip that ensures secure fastening in various materials
• Versatile material compatibility specifically engineered for aluminum, brass, cast iron, and sheet metal applications
• Reliable flush mounting with integrated flange that distributes clamping pressure evenly without requiring separate washers
• Precision drilling guidance with recommended 29/64" drill bit size for perfect hole preparation and optimal thread formation

Professional Applications & Engineering Value

These heavy-duty flanged hex tapping screws deliver exceptional engineering value in metal fabrication and assembly operations. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for demanding applications. The thread-cutting design with UNC coarse threads creates precise mating threads in aluminum, brass, cast iron, and sheet metal without pre-tapping, significantly reducing installation time and labor costs. The serrated locking flange eliminates the need for additional lock washers by biting securely into material surfaces, providing vibration-resistant fastening that maintains clamp force under dynamic loads. This combination of features makes these tapping screws ideal for production lines where reliability, speed of installation, and long-term performance are critical factors in manufacturing efficiency.

Specification Summary & Compliance

This 1/2"-13 flanged hex tapping screw features UNC coarse threads with standard thread tolerances and measures 1" in length with 3/4" hex head width. Manufactured in compliance with ASME B18.6.3 specifications (SAE J933) for dimensional accuracy and performance standards. The product is fully RoHS 3 (2015/863/EU) Compliant, ensuring environmental regulatory adherence for global manufacturing applications. Proper installation requires a 29/64" drill bit (0.4531" diameter) for optimal thread engagement in designated materials.