Definition of Black Oxide Coating Black oxide coating is a conversion coating applied to steel fasteners, including screws and bolts. You use it to add a thin, black finish that offers mild corrosion resistance and reduces light reflection. The process… Read more

Definition of Drill Point Tip A drill point tip is the shaped end of a self-drilling screw that bores into material as you drive it. You use this tip to cut a pilot hole in metal or other hard substrates… Read more

Definition of Galvanic Corrosion Galvanic corrosion occurs when two different metals connect in an electrolyte, such as saltwater or moisture. In this electrochemical reaction, one metal becomes the anode and corrodes more rapidly, while the other becomes the cathode and… Read more

Definition of Nylok Coating A nylok coating is a thin layer of nylon applied inside or around nut threads to create friction that resists loosening. You use this coating on nuts and bolts when you need vibration resistance in assemblies.… Read more

Definition of Thread Profiles Thread profiles describe the shape and geometry of screw threads. You examine the cross-sectional form of the thread including root, crest, and flank angles. Common profiles include unified, metric, Acme, and buttress. The profile affects strength,… Read more

Type 17 screws are self-drilling wood screws with a notched or fluted tip that acts like a drill bit. This design helps remove material as the screw penetrates, reducing the risk of splitting the timber and minimizing the need for pilot holes. They are commonly used in softwoods, hardwoods, and particle board. Often found in decking, fencing, and general construction, these screws save time and labor on-site. The coarse thread ensures strong holding power in wood, while the sharp point improves penetration speed and accuracy. Read more