Zinc-Plated Square Drive Flat Head Machine Screw - Anti-Corrosion Industrial Fastener for Equipment & Furniture

A machine screw is a type of screw that has a uniform thread size. They usually come in a 1/4 inch or smaller diameter sizes. They are designed to fit perfectly into a threaded hole in the parts that they are fastening to.

Machine screws come in a variety of types, materials, configurations, as well as drive sizes and heads. They are most commonly made from steel, brass, aluminum alloy, and stainless steel.

When you hear the term “uniform threads,” it is referring to the diameter of the fasteners thread. When they are uniform, that means they remain the exact same diameter throughout the full length of the threaded section of the fastener.

“Tapered threads” are ones that do not have the same diameter throughout. These are found on pointed fasteners, such as wood screws. The point at the end is intended to cut through soft material they are being threaded with, like wood or plastic.