Tek Screw Steel T3 5.5x20mm fasteners provide efficient fastening solutions for thin metal substrates and lightweight structural applications. Engineered with a self-drilling T3 point, these screws penetrate material without requiring pilot holes, reducing installation time on job sites. The robust steel construction offers excellent tensile strength and resistance to shear forces, making them suitable for securing metal cladding, ducting, and composite panels. Their compact 20mm length targets precision work where space constraints demand shorter fasteners. Trusted by electrical contractors and fabricators, these screws deliver consistent performance across demanding industrial and commercial projects.
