screws

A screw is a type of fastener that holds objects together by converting rotational force into linear motion. It has a threaded shaft that, when turned with a screwdriver, digs into materials like wood, metal, or plastic to secure parts tightly. Screws are designed to provide strong, removable connections, making them essential in construction, furniture, and machinery. The threads create grip and resistance to pulling apart, while the head allows for easy turning. Different screws vary in size, thread type, and head style to suit various applications.