S-91675A317 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 Stainless Steel construction, ideal for demanding industrial environments.
• Excellent thread-forming capability creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time.
• High torque transmission via the external hex drive design, preventing tool slippage and ensuring secure installation.
• Enhanced holding power from the flanged head, which distributes clamping force and resists pull-through in thin materials.
• Reliable fastening in thin sheets with a pointed tip and fully threaded shank for quick starts and consistent grip up to 0.025" thickness.
• Precise fit and consistent performance with a No. 6 screw size, 18 TPI thread pitch, and right-hand threading for standard applications.
• Compliance with global environmental standards (RoHS 3 and REACH), ensuring safety and reliability for regulated industries.

Professional Applications & Engineering Value

These thread forming tapping screws are engineered to solve common fastening challenges in sheet metal assemblies. Made from durable 410 Stainless Steel, they resist rust and wear in harsh conditions, extending service life. The fully threaded design and pointed tip enable quick penetration and strong thread engagement without needing a pre-drilled tapped hole, which minimizes labor and tooling costs. The external hex drive and flanged head provide superior torque control and prevent loosening under vibration, making them ideal for HVAC, electronics enclosures, and automotive panels where reliability is critical. This combination of material strength and design efficiency ensures secure, long-lasting fastening in thin-gauge materials.

Specification Summary & Compliance

This No. 6 size screw features a 0.138" thread diameter with 18 TPI right-hand threads, conforming to standard thread forming (Type A/AB) specifications for sheet metal. Dimensions include a 3/4" length, 1/4" hex head width, and 0.328" flange diameter for precise fit. It is designed for use with a No. 32 drill bit (0.116" diameter) and maximum material thickness of 0.025". The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability.