An adjusting screw is a type of screw that is used to make minor adjustments to the position or alignment of a component. Adjusting screws are commonly used in machinery and optical equipment. They are also sometimes used in electrical devices such as switches and circuit breakers.Adjusting screws are typically made from steel or brass. The head of the screw may be flat, slotted, or Phillips head. The threads on an adjusting screw are usually fine pitch so that the screw can be turned with precise control.To use an adjusting screw, first determine which way you need to turn the screw to achieve the desired adjustment. Then, insert a wrench into the head of the screw and turn it in the appropriate direction. Be careful not to over-tighten the screw, as this could damage the component you are trying to adjust.