Wholesale Self-Tapping Stainless Steel Screws
Type A self-tapping screws have a pointed cutting edge designed to cut its own threads as the screw is driven into a surface. Type A self-tapping screws are a type of sheet metal screw made with a tapered point and wider spaced threads compared to Type AB or Type B self-tapping screws.
No matter your industry or application, RC Fasteners can guarantee the high quality self-tapping screws you need to get the job done. Our extensive selection of self-tapping screws includes a wide range of styles and sizes with custom or specialty options available upon request. We offer price matching and free shipping on orders of $200 or more.
Click into any of the following options to view available sizes and add to your cart. For more information regarding our stainless steel self-tapping screws, get in touch with our sales team or call us at 623-516-1551.
Types of Self-Tapping Stainless Screws
18-8 Stainless Steel Self-Tapping Screws18-8 stainless self-tapping screws are Type A screws made from one of the following austenitic alloys: 303, 303Se, or 304—all of which are characterized by having a chromium content of 17-19% and a nickel content of 8-10%. 18-8 stainless steel is used in products that require general atmospheric corrosion resistance. We supply a variety of 18-8 stainless screws, including square and Phillips flat, oval, pan, and truss head.
316 Stainless Steel Self-Tapping Screws316 stainless steel is very similar to 18-8, but 316 contains 2-3% molybdenum while 18-8 does not. While these two types of stainless steel are almost identical in terms of strength, 316 stainless steel has a higher degree of corrosion resistance due to the added molybdenum. We supply 316 stainless steel self-tapping screws in a variety of styles, including slot hex washer head and Phillips flat, oval, pan, and truss head.
Self-Tapping Screws vs Self Drilling ScrewsSelf-tapping and self-drilling are terms that are often used interchangeably, however; these two types of screws have small distinctions that differentiate them from one another.
- Self-tapping screws, for one, create their own threads as they are driven into a hole and do not require matching female threads in the same way nuts and bolts do. However, self-tapping screws do require a pre-drilled hole in order to properly fasten two materials together.
- Self-drilling screws, on the other hand, have a point similar to that of a drill bit, allowing them to create their own hole and threads in one sweep, and therefore, do not require a preexisting hole.