Fastener Basics - Bolt Depot

Fastener Basics Common Fastener Types Fastener Materials Hex bolts, or hex cap screws, are used in Note: Do not rely on this guide for color-matching. The machinery and construction. Can be used with a appearance of these materials sometimes di ers signi - nut, or in a tapped hole. Fully threaded hex bolts cantly from the photos below. are also known as tap bolts. Zinc- plated steel is a low carbon steel for Wood screws have large threads and a smooth general use. Relatively shank f or pulling two pieces of material together. inexpensive, with the They can be used in wood and other soft materi- zinc plating providing als. moderate corrosion Sheet metal screws have sharp points and resistance suitable for threads, and are designed to be driven directly indoors or otherwise into sheet metal. They can also be used in softer dry conditions. Color is materials like plastic, berglass, or wood. either a blue-ish tint or Machine screws are fully threaded for use with a yellow depending on the exact process.

Chrome and nickel plated steel are smooth and polished for appearance. The plating offers moderate corrosion resistance. Stainless steel offers good corrosion resistance, making it suitable for outdoor use and marine applications, but is more expensive than zinc plated. Hot-dipped galvanized steel has a thicker zinc coating for better

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