S-91775A775 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Black-oxide steel coating provides reliable protection against rust, extending service life in demanding industrial environments.
• Superior Thread-Forming Capability: A/AB type thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling costs.
• Optimized Sheet Metal Performance: Specifically engineered for 0.025" maximum drilling thickness in sheet metal applications, ensuring secure fastening in thin materials.
• Secure Drive Engagement: Phillips No. 2 drive style offers excellent torque transfer and reduces cam-out during installation, improving assembly efficiency.
• Clean Aesthetic Finish: Oval head profile with standard countersink provides a flush, professional appearance when installed in prepared holes.
• Full Thread Engagement: Completely threaded shank maximizes holding power and distributes stress evenly across the entire fastener length.
• Environmental Compliance Ready: Meets RoHS 3 and REACH regulations, ensuring safe use in regulated industries and global markets.

Professional Applications & Engineering Value

These No. 10-12 thread forming tapping screws deliver exceptional value in sheet metal assembly applications where vibration resistance and pull-out strength are critical. The black-oxide steel construction combined with the thread forming design eliminates the need for separate tapping operations, significantly reducing labor costs and assembly time. The fully threaded configuration ensures maximum grip length in materials up to 0.025" thickness, while the Phillips oval head provides both aesthetic appeal and secure drive engagement. These tapping screws are particularly valuable in HVAC systems, electronic enclosures, and automotive panels where reliable fastening in thin-gauge sheet metal is essential for structural integrity and long-term performance.

Specification Summary & Compliance

This No. 10-12 x 1-1/2" tapping screw features a 0.19" thread diameter with 12 threads per inch in right-hand orientation, manufactured to standard thread forming specifications. The screw requires a No. 21 drill bit (0.159" diameter) and features an 82° countersink angle for proper seating. All dimensional tolerances meet industry standards for tapping screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications.