Unslotted, Indented, Hex Washer, Thread Cutting Screws (Type F) Are Designed For Use In Heavy Gauge Sheet Metal, Aluminum, Cast Iron, Brass, Plastic, Zinc And Die Castings.
Unslotted, Indented, Hex Washer, Thread Cutting Screws (Type F) have a sturdy construction for long lasting durability and strength. Indented hex washer head offers advantages of a hex head plus greater protection to the mating surface. Material into which the screw is to cut threads should have a lower hardness by 10-20 Rockwell hardness. Choose from Stainless Steel, Black Oxide or Zinc finishes for added protection from wear and tear. Available in a wide variety of sizes for increased versatility. Length and package quantities vary per model.