Screw information including common types, head types, popular drives and a basic definition.Basic Screw Definition and Use
Screws are used to hold two objects together or to fasten one object to another. Some screws are designed to screw into a pre-threaded material (internal thread) such as a nut or a threaded hole while others screw directly into a surface while creating their own hole.
Common Screw Types
The most popular screws are: wood screws, sheet metal screws, set screws, socket screws, thread cutting screws, self drilling screws and machine screws.
Screw Head Types
Common screw head types include: round head, flat head, pan head, oval head, truss head, and hex head.
Popular Screw Drives
The most popular screw drives include, Phillips drive, slotted drive, Torx (Allen) drive, hex drive and socket drive.
NutsandBolts.com is a discount bulk supplier of screws and fasteners. We sell to individuals as well as commercial and industrial purchasers.