A screw is a type of fastener, in some ways similar to a bolt typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. A screw drive is a system used to turn a screw. At a minimum, it is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. Usually, it also involves a mating tool, such as a screwdriver, that is used to turn it. Other examples include Phillips head screws and screwdrivers, and Allen hex screws and wrenches.
Features - 0.25-20 x 1.5 in. Stainless Steel Shoulder Screw
- Made with high quality material
Specifications - Material: Stainless Steel
- Length: 1.55 in / 3.94 cm
- Width: 0.45 in / 1.14 cm
- Height: 0.4 in / 1.02 cm
- Size: 0.25-20 x 1.5 in.
- SKU: PTSWN20135