S-91675A351 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 stainless steel construction for long-lasting performance in demanding industrial environments
• Exceptional holding power through thread forming technology that creates strong, permanent threads in sheet metal without pre-tapped holes
• Quick and secure installation with external hex drive design allowing for high torque application and reduced stripping risk
• Enhanced load distribution thanks to the integrated flange that provides wider bearing surface and prevents pull-through
• Maximum thread engagement with fully threaded design ensuring consistent holding strength along the entire screw length
• Optimized for sheet metal applications with pointed tip for easy starting and precise No. 21 drill bit compatibility
• Reliable performance in thin materials specifically engineered for maximum 0.025" drilling thickness in sheet metal assemblies

Professional Applications & Engineering Value

These 410 stainless steel flanged hex head tapping screws deliver exceptional engineering value in sheet metal fabrication and assembly applications. The thread forming design eliminates the need for pre-tapped holes, creating stronger threads that resist vibration loosening while reducing installation time and labor costs. The external hex drive provides superior torque transmission compared to Phillips or slotted drives, minimizing cam-out and driver slippage during high-volume production. With full threading and corrosion-resistant 410 stainless steel construction, these screws maintain integrity in harsh environments where moisture, chemicals, or temperature variations would compromise ordinary fasteners. The integrated flange design distributes clamping force evenly, preventing distortion in thin-gauge materials while providing a finished appearance.

Specification Summary & Compliance

This No. 10-12 tapping screw features precise inch system measurements with 3/8" length, 0.19" thread diameter, and 12 threads per inch. The right-hand thread direction and fully threaded configuration ensure consistent performance. Manufactured to industry standards for thread forming screws (Type A/AB), these fasteners are compatible with No. 21 drill bits (0.159" diameter) and designed for maximum 0.025" drilling thickness in sheet metal applications. The 410 stainless steel composition provides excellent corrosion resistance while meeting industry specifications for mechanical properties and dimensional accuracy.