Hex cap screws are six-sided bolts (hexagon) created that has a perforated hex head and also a washer experience about the bearing surface area. These types of screws are employed to attach Wooden or steel to wood. These screws have limited tolerances on human body dimensions and possess a chamfer. https://typesofwoodscrew82581.blogproducer.com/35774856/types-of-screw-heads-diagram-things-to-know-before-you-buy