S-91715A114 6-32 x 3/8" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black zinc plating that protects against rust in industrial environments
• Effortless installation through self-tapping thread cutting design that eliminates the need for pre-tapped holes
• Wide material compatibility for reliable performance in aluminum, brass, cast iron, and sheet metal applications
• Secure fastening with UNC coarse threading that provides excellent grip and vibration resistance
• Optimized drive efficiency through No. 2 Phillips head that prevents cam-out during installation
• Full thread engagement with 100% threading that maximizes holding power across the entire screw length
• Regulatory compliance meeting both ASME B18.6.3 engineering standards and RoHS 3 environmental requirements

Professional Applications & Engineering Value

These black zinc-plated steel tapping screws solve critical assembly challenges in metalworking and manufacturing applications. The thread cutting design (Type F) creates precise mating threads in ductile materials like aluminum, brass, and cast iron, eliminating the time and cost of separate tapping operations. The UNC coarse thread profile ensures rapid installation while providing superior pull-out resistance in sheet metal assemblies. With full threading and blunt tip, these screws distribute clamping force evenly while preventing material splitting. The pan head with No. 2 Phillips drive offers a low-profile solution for applications where clearance is limited, making them ideal for electrical enclosures, machinery panels, and automotive components requiring reliable, vibration-resistant fastening.

Specification Summary & Compliance

This 6-32 x 3/8" tapping screw maintains Class 2A thread tolerances with UNC coarse threading (32 threads per inch) and meets ASME B18.6.3 specifications SAE J933. The fastener is fully compliant with RoHS 3 (2015/863/EU) regulations and requires a No. 31 drill bit (0.12" diameter) for proper hole preparation. Manufacturing follows industry-standard dimensions including 0.27" head diameter, 0.097" head height, and right-hand thread direction for consistent performance across production runs.