Description

Self drilling screws phil drive flat head (100 degrees) with 6 reverse serration type BSD with two wings hardened zinc plated is a fiber cement board screws. Self-tapping and self-drilling screws are two types of screws used in metal building and general construction, as well as many other applications and industries. Contrary to popular belief, the two terms are not interchangeable. Often, our customers ask for self-tapping screws when they actually want self-drilling screws, or vice versa. Let’s go over the similarities, differences, and how to know when to use which type of screw.