Stainless Steel Machine Screws

Stainless steel machine screws are versatile fasteners commonly used in a wide range of applications. Available in both inch and metric sizes, these screws are highly durable and resistant to corrosion, making them ideal for use in environments where moisture or exposure to harsh elements is a concern.

Featuring various head styles, stainless steel machine screws offer flexibility for different applications. The head styles include:

  • Cheese: A rounded head with a slightly curved top surface.
  • Fillister: A cylindrical head with a slightly convex top surface.
  • Flat: A flat head with a countersunk shape, typically used when a flush appearance is desired.
  • Flat undercut: Similar to a flat head, but with a slightly concave top surface and an undercut design.
  • Hex: A hexagonal head with six sides, providing a secure grip for wrenches or hex keys.
  • Oval: An oval-shaped head with a slightly domed top surface.
  • Oval undercut: Similar to an oval head, but with an undercut design.
  • Pan: A flat head with a rounded top surface and a cylindrical shape extending from the bottom.
  • Round: A rounded head with a slightly domed top surface.
  • Trimmed hex: A hexagonal head with rounded corners for a sleek appearance.
  • Truss: A low-profile, rounded head with a wide surface area for increased stability.

Additionally, stainless steel machine screws come in different drive styles, which determine the type of screwdriver or bit required for installation. The drive styles include:

  • Unslotted: A plain head without any slots or grooves, requiring specialized tools for tightening or removal.
  • Phillips: A cross-shaped indentation on the head that requires a Phillips screwdriver.
  • Six lobe/Torx: A star-shaped pattern with six lobes, often used for applications requiring high torque.
  • Slotted: A single linear slot that accommodates a standard flat-blade screwdriver.
  • Square: A square-shaped recess that requires a square-head screwdriver.

Stainless steel machine screws offer strength, durability, and resistance to corrosion, making them a reliable choice for various projects and applications.