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.Ĭustom Self-Tapping Sheet Metal ScrewsIn addition to our wholesale stainless steel self-tapping screws, we also offer custom and specialty self-tapping screws designed to meet your unique specifications.However, self-tapping screws do require a pre-drilled hole in order to properly fasten two materials together. 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.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. 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.

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. 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. We supply a variety of 18-8 stainless screws, including square and Phillips flat, oval, pan, and truss head. 18-8 stainless steel is used in products that require general atmospheric corrosion resistance. 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%.

Stainless steel screws self tapping