Reliable PKTB812MR Screw, #8 Thread, 1/2 in L, Full Thread, Pan Head, Square Drive, Self-Drilling, Self-Tapping Point

Get powerful and convenient fastening performance with these metal screws. Ideal for use in chimney projects, the steel TEK screws feature a black phosphate finish that provides rust resistance. Easy-to-install with a square driver, they have a pan head for great torque and hold. The metal screws have a self-tapping thread that offers efficient drilling and fastening performance, while the self-drilling point eliminates the need for a pilot hole.