S-90077A255 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient dual-drive compatibility with Phillips/Slotted head accommodates various tooling preferences without compromising installation speed
• Optimal thread-forming performance creates precise mating threads in sheet metal up to 0.025" thickness, eliminating the need for separate tapping operations
• Maximum material engagement through fully threaded design and pointed tip ensures secure, vibration-resistant fastening in sheet metal applications
• Standardized dimensional accuracy with No. 10-12 thread specifications guarantees consistent performance and interchangeability
• Enhanced installation control with rounded pan head profile provides comfortable seating and improved torque transmission during driving
• Regulatory compliance assurance meets RoHS 3 and REACH standards for environmentally responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

Engineered specifically for sheet metal fastening applications, these zinc-plated steel tapping screws deliver exceptional value in industrial assembly operations. The thread-forming A/AB screw type eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while creating strong, strip-resistant threads in metal substrates. The fully threaded design with pointed tip ensures maximum thread engagement from initial contact, providing superior pull-out resistance in thin-gauge materials. With Phillips/Slotted drive compatibility, manufacturers maintain flexibility in production line tooling while the zinc-plated finish provides essential corrosion protection for extended service life in challenging environments. These industrial screws are particularly valuable in HVAC systems, electrical enclosures, and metal fabrication where reliable, vibration-resistant fastening is critical.

Specification Summary & Compliance

This No. 10-12 x 2-1/2" tapping screw features precise dimensional specifications including 0.19" thread diameter, 12 threads per inch, and standard pan head profile with 0.373" diameter. Manufactured as a thread-forming screw type A/AB with right-hand threading, it requires No. 21 drill bit (0.159" diameter) for proper installation in materials up to 0.025" thickness. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and unrestricted use in global industrial markets.