Self Tapping Screws
Self-Tapping Screws & Sheet Metal Screws
Value Fastener offers self-tapping screws, including sheet metal screws, in a broad range of sizes and styles. We maintain a huge, in-stock inventory of standard and specialized self-tapping screws to meet the needs of nearly any application.
Follow the links below to find the screws you need, or use the filters at left to narrow your search by size, length, material, finish, or other factors. If we don’t have the self-tapping screws or sheet metal screws you’re looking for, they probably don’t exist.
See individual product listings for additional information and specifications.
What is A Self-Tapping Screw?
A self-tapping screw is a type of screw that taps and threads its own hole as it is installed. Different tapping styles are used with different materials. For example, self-tapping screws for metal utilize a gap in the continuity of the thread, which generates a flute and a cutting edge similar to those on a standard tap; self-tapping screws for wood or soft plastics often use a tip that tapers to a gimlet point, which forms a tap hole by displacing the surrounding material. Also known as self-drilling screws.
Self-piercing screws are a variation of self-tapping screws that are specifically designed for use with sheet metal materials. These screws have the ability to self-pierce light gauge sheet metal and tap their own mating threads as they’re installed.
Sheet Metal Screws
Sheet metal screws are one type of self-tapping screw. They are ideal for applications with pre-drilled holes, and are fully threaded from under the head to the end of the thread. Value Fastener stocks Type A, Type AB, High-Low and Type B sheet metal screws.
- Type A self-tapping screws feature coarse threads and are commonly used in wood or thin metal materials from 0.015” to 0.05” thick.
- Type AB self-tapping screws feature fine threads, and are more effective for brittle materials.
- Type B self-tapping screws have blunt tips and are often used with plastics or thin metals from 0.05” to 0.2” thick.
Most of our sheet metal screws are manufactured from 18-8 and 410 stainless steel. These stainless steel screws are available with a number of finish options; we offer clear zinc plated screws, black zinc plated screws, black oxide plated screws, green ceramic coated screws, among other options.
High-Low self-tapping screws have double lead threads where one thread is high and the other low, which provide easier penetration into the substrate. The high threads are sharper than conventional threads, which causes less displacement of material as the screw is driven in; consequently, less effort is required to drive in High-Low self-tapping screws. The low threads, which run between the high threads, increase the screws’ contact with the substrate material for a stronger grip and increased resistance to pullout and vibrational loosening.
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