1. What is a screw thread？   The screw thread refers to the helical shape running around the shank of the metric screw. Being introduced by the screwdriver or wrench, the thread converts the rotational movement into linear movement…

1. What is a threaded rod? Like screws and nails, the threaded rod is another type of commonly used fastener. Basically, it’s a helical stud with threads on the rod: Similar in appearance to a screw, the threading extends along…

1. What is clout nail? The Clout Nail is also known as felt nail or roofing felt nail. It features a large, flat head, a short shank, and a diamond shape point. This Clout Nail is widely used in a…

1. What is finishing nail? The Finishing Nail is also known as Brad Nail or Finish Nail. This Finish Nail is featured by a small head, a smooth shank, and diamond shape point. Compared with Common Nail, the Finishing Nail…

1. What are Wafer Head Screw, Truss Head Screw, or Modified Truss Head Screw? The Wafer Head Screw is also known as Truss Head Screw or Modified Truss Head Screw. This screw features an oversized domed head with a flange,…

1. What is Metal Roofing Screw? The Hex Head Self Drilling/Tapping Screw is also known as Roofing Screw or Metal Roofing Screw as this screw is especially used for attaching metal roof panels to the building structure, whether steel or…

  1. What is Bugle Head Screw? A screw’s head is an essential factor in the fastening. This head drives the shaft into the material and the shape of the head affects the finished look of the project. Unlike other…

  1. What is Chipboard Screw? The Chipboard Screw is also called  Screw for Particleboard or Screw MDF. It’s designed with a countersunk head ( usually a double countersunk head), a slim shank with an extremely coarse thread, and a…