What is a round screw?

The

round screw has a convex head that sits on top of the material held at the screw. The wide bottom of the round head screw distributes the weight on a larger area than other screw types, which increases the thickness of the screwed connection. Round head screws-including machine, wood and self-impact metal screws-moors have Phillips ™, slot or hex indentation to allow the screw to meet numerous installation requirements. The correct selection of the type of screw and head requires knowledge of the base material that holds the screw and the amount of pressure required to install the screw in the material. The propagation of pressure to a larger area prevents damping and tearing in thin metals and other weak materials that are in connection. This increments with the strength of the connection and adding properly the size of the flat washer under the screw head increases the maintenance force of the screw connection. The threads of the machine screw are too fine to hold in softer materials such as wood and plastic. Another type of bolt of round head providesLarger threads for softer materials.

The rough threads of the round head screw grabs and hold in softer materials such as wood, plastic and composite plates. The wooden screws of the round head often have a larger head of diameter than the machine screws. This spreads the strength of the connection on an even larger surface of the soft material and avoids indenting on the surface of the material or crushed surface fibers of softer forests such as screws with tapered heads. Pine plates, plywood and composite boards are susceptible to damage to the surface by narrowed heads heads. The third type of round screw also has a rough fiber, but is designed for another type of material.

Self -fleeting sheet metal screws, often called Parker screws, have rough threads designed to double -click and hold in a thin metal metal. The round head screw head has a standard direct slot, but for smaller screws with clicking, the Phillips ™ head is common. Installation of a round head screw withDeviving threads require great pressure, allowing the threads to be cut into the sheet. The use of this type of round head screw in other types of material causes a weak connection that can pull out of the base material under pressure.