Stainless Steel 316 Set Screw, Hex Socket Drive, Cup Point, 5/16"-18, 1" Length (Pack of 25)

Set Screws are often used for holding a pulley, gear, or other parts from turning relative to a shaft. 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).Stainless Steel 316 has a higher nickel and molybdenum content than most Austenitic stainless steels which means that this material offers more corrosion resistance without giving up strength or hardness. Tensile strength is 35,000 psi (pounds per square inch). Hex socket drive systems are driven by hex wrenches or power tools with hexagonal bits. Cup Point is the most common point type, with good holding capability. 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.

• Set Screws keep parts from turning relative to a shaft
• Stainless Steel 316 is suitable for use where Stainless Steel 304 does not provide enough corrosion resistance
• Do not have an external head
• Drive system is a hexagon-shaped hole
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads