S-95015A277 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Tamper-resistant T25 drive prevents unauthorized removal, enhancing security in public or sensitive industrial environments.
• 18-8 stainless steel construction offers excellent corrosion resistance, ensuring long-term durability in harsh conditions.
• Thread forming design (Type AB) creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling costs.
• Standard 82° flat head with full threading provides a flush finish and maximizes grip length for secure fastening in materials up to 0.025" thick.
• Precise No. 10-12 thread with 0.19" diameter ensures reliable engagement and consistent clamping force in sheet metal assemblies.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptability for your products.
• Optimized for use with No. 21 drill bit (0.159" diameter) simplifies hole preparation and ensures proper screw fit, minimizing assembly errors.

Professional Applications & Engineering Value

This No. 10-12 thread forming screw is specifically engineered for sheet metal applications, where vibration resistance and tamper-proof security are critical. The 18-8 stainless steel material provides superior corrosion resistance, ideal for outdoor enclosures, HVAC systems, and electronic cabinets exposed to moisture. Its AB type tapping design forms threads by displacing material, eliminating chips and creating a tighter fit that resists loosening under dynamic loads. The tamper-resistant T25 drive adds a layer of security against vandalism or unauthorized access, while the standard 82° countersink allows the flat head to sit flush, preventing snagging and improving aesthetics. This combination addresses common industrial pain points like assembly efficiency, long-term reliability, and compliance requirements in security-sensitive fastening scenarios.

Specification Summary & Compliance

This screw features a No. 10-12 thread with a diameter of 0.19" and approximately 12 threads per inch, following standard inch measurements for precision. The flat head has a diameter tolerance of -0.019" to 0.033" and a standard 82° countersink angle, ensuring consistent seating. Manufactured as a right-hand, fully threaded, thread forming (Type AB) tapping screw, it is designed for use in sheet metal with a maximum drilling thickness of 0.025" using a No. 21 drill bit (0.159" diameter). The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety regulations for industrial components.