Machine screws, also known as machine bolts, are versatile fasteners designed for a wide range of industrial, commercial, manufacturing, and maintenance applications. Apex Fasteners offers machine screws in a variety of Imperial sizes, head styles, drive types, materials, lengths, and thread configurations to suit different fastening requirements.
Imperial machine screws are typically specified by diameter, threads per inch (TPI), and length. For example, a 1/4"-20 x 1" machine screw has a 1/4-inch diameter, 20 threads per inch, and a 1-inch length. Machine screw sizes commonly range up to 3/4" (19.05 mm) in diameter, although larger sizes are also available.
