Our Substructural Self-Drilling Fasteners are designed for secure and efficient attachment in steel framing and substructural applications. Featuring self-drilling TEK points, these fasteners eliminate pre-drilling and ensure fast, consistent installation in metal-to-metal connections. Manufactured with a Galvalume coating, they offer excellent corrosion resistance for long-term durability.
Available options include:
- #12-24 x 1¼” TEK 4.5 HWH – ideal for heavier gauge steel, delivering strong drilling capacity and secure fastening
- 1/4-14 x 1¼” Shoulder TEK 2 (3/8″ HWH) – provides a built-in shoulder for spacing and controlled fastening depth
- 1/4-14 x 1¼” TEK 2 (5/16″ HWH) – perfect for lighter gauge applications, offering fast drive speeds and efficient installation
Packaged in convenient 100-count boxes, these fasteners are built for reliability and performance in demanding commercial and industrial steel framing projects.




