Stainless Steel Panel Screw, Plain Finish, Fillister Head, Slotted Drive, 1/2" Length, #2-56 Threads (Pack of 5) 1/2 Inches
Stainless Steel Panel Screw, Plain Finish, Fillister Head, Slotted Drive, 1/2" Length, #2-56 Threads (Pack of 5)
Panel Screws are used for equipment panel assemblies, cabinets, and enclosures, when hardware is subject to loss. 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. Fillister head fasteners are considered an improvement over round head equivalents - the smaller head creates more downward pressure for a given torque level and the thicker head plus deeper drive slot allows higher torque levels to be generated. The Phillips drive style was originally designed so that the driver would slip out under extreme torque, preventing over-tightening and damage to the fastener or the material. A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.
- Used for equipment panels when hardware is subject to loss
- Stainless Steel is suitable where formability and cost are important considerations
- Fillister head for high torque and good hold-down strength
- Phillips drive is designed to cam out under too much torque
- Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads