Stainless Steel Sheet Metal Screw, Plain Finish, Hex Head, External Hex Drive, Self-Drilling Point, 1/2'' Length, #8-18 Threads (Pack of 100)
Availability: Pre-Order, Inquiry Price
*Pointed end and widely spaced threads
*Stainless Steel is suitable where formability and cost are important considerations
*Hex head for easy driving
*Length is measured from under the head
Sheet metal screws have a pointed end and widely spaced threads. They're self-starting in thin sheet metal, but in thicker materials a drilled hole is recommended.
Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness. These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements. The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels.  Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316). Another common naming convention for Austenitic Stainless Steels are 18/8, 18/10, 18/0, etc. where the 18 refers to the % of Chromium and 8 to the % of Nickel contained in the material.  Â
Hex head fasteners can be driven with simple wrenches, and require minimal clearance above the fastener because they can be driven or loosened from the side. Self-Drilling Points are excellent for use with sheet metal.
