S-90096A626 3/8"-16 x 1 1/4" 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 demanding industrial environments.
• Excellent thread-cutting performance in tough materials like aluminum, brass, and cast iron, reducing installation effort and preventing stripping.
• Enhanced load distribution and stability from the integrated flange, minimizing the risk of loosening under vibration.
• High-torque capability with the external hex drive and hex head design, allowing for secure and efficient installation with standard tools.
• Reliable fastening in coarse-thread applications due to the UNC 3/8"-16 thread form, providing strong holding power in various base materials.
• Full threading for maximum grip length, ensuring consistent clamping force along the entire shank in sheet metal and other assemblies.
• Compliance with major industry standards including ASME B18.6.3 and RoHS 3, guaranteeing quality and environmental safety for global projects.

Professional Applications & Engineering Value

This flanged hex tapping screw is engineered to solve common fastening challenges in aluminum, brass, cast iron, and sheet metal assemblies. The Type F thread-cutting design and coarse UNC threads enable easy, self-tapping installation without pre-tapping, significantly reducing labor time and tooling costs. Made from robust zinc-plated steel, it resists corrosion in harsh conditions, while the flange provides a larger bearing surface to distribute clamp load effectively, preventing material damage and maintaining joint integrity under dynamic loads. Its external hex drive ensures high torque application, making it ideal for heavy-duty industrial equipment, automotive components, and metal fabrication where reliability and compliance with ASME B18.6.3 standards are critical.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with a 0.375" diameter and Class 2A fit for standard applications. It is fully threaded with a blunt tip and meets ASME B18.6.3 specifications (referencing SAE J933). The product is RoHS 3 (2015/863/EU) Compliant, ensuring it is free from hazardous substances, and is designed for use with a R drill bit (0.339" diameter) for optimal performance in specified materials.