S-95641A201 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced tamper resistance and secure fastening provided by the Tri-Wing® drive, reducing the risk of unauthorized removal.
• Strong, reliable thread formation in sheet metal up to 0.025" thick without the need for a pre-tapped hole, saving time and labor.
• Optimized installation efficiency with a No. 29 drill bit (0.136" diameter) requirement, ensuring precise and quick setup.
• Excellent vibration resistance and holding power from the fully threaded, pointed tip design for long-term joint integrity.
• Broad material compatibility as A/AB type thread forming screws, suitable for various sheet metal and thin gauge materials.
• Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

These No. 8 x 1-1/4" Tri-Wing® tapping screws are precision-engineered for demanding sheet metal applications, where reliable fastening and corrosion resistance are critical. Made from 18-8 stainless steel, they resist rust and degradation in humid or chemical-exposed settings, extending service life in HVAC, electronics enclosures, and automotive assemblies. The thread forming design creates strong, clean threads in ductile materials without chipping or swarf, reducing assembly steps and improving joint strength. With a 15 TPI thread pitch and pan head style, they ensure uniform clamping force and easy drive engagement, making them a top choice for engineers seeking durable, RoHS and REACH compliant fasteners that meet industrial standards.

Specification Summary & Compliance

This screw features a No. 8 size with 1-1/4" length, right-hand threads, and fully threaded shank for consistent performance. It adheres to standard thread forming (Type A/AB) specifications, requiring a No. 29 drill bit (0.136" diameter) for materials up to 0.025" thickness. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory acceptance in industrial supply chains.