S-90096A628 3/8"-16 x 1 1/2" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread-cutting performance with Type F design for clean, secure fastening in aluminum, brass, cast iron, and sheet metal without pre-tapping.
• Enhanced corrosion resistance from zinc plating, extending service life in industrial environments and reducing maintenance needs.
• High-torque installation capability thanks to the external hex drive and flanged head, ensuring reliable clamping force and preventing strip-out.
• Time and labor savings with coarse UNC threads and full threading, enabling faster driving and consistent holding power in various materials.
• Flange design eliminates need for separate washers, distributing load evenly and simplifying assembly in high-vibration applications.
• Precise fit and compatibility with standard R drill bit (0.339" diameter), ensuring optimal thread engagement and reduced installation errors.
• Durable zinc-plated steel construction provides high tensile strength for heavy-duty fastening in demanding industrial settings.

Professional Applications & Engineering Value

This 3/8"-16 UNC flanged tapping screw is engineered to address common challenges in metalworking and assembly, such as material fatigue and inconsistent thread formation. The thread-cutting Type F design and coarse UNC thread enable self-tapping in aluminum, brass, cast iron, and sheet metal, reducing the risk of cross-threading and improving joint integrity. The zinc-plated steel material offers excellent resistance to environmental corrosion, while the external hex drive and integrated flange support high torque application and even pressure distribution. Ideal for HVAC systems, machinery frames, and automotive components, this screw ensures reliable performance in heavy-duty industrial applications, minimizing downtime and replacement costs.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with full threading and a blunt tip, designed for thread-cutting efficiency. Dimensions include a 1 1/2" length, 0.375" thread diameter, and 0.78" flange diameter for consistent fit. It complies with ASME B18.6.3 and SAE J933 specifications, ensuring dimensional accuracy and mechanical performance. The product is also RoHS 3 (2015/863/EU) Compliant, meeting environmental regulations for safe use in global markets.