Self Tapping Screws

Self-tapping screws cut their own thread as they're driven, eliminating the need for pre-tapping or a separate nut in sheet metal, plastic, and light-gauge materials. At the DIY Hardware Store, our self-tapping screws range covers the countersunk and pan head types in zinc-plated steel and stainless steel, used across automotive bodywork, electrical enclosures, plastic assembly, and general light fabrication work.

Self-tapping screws come in two main thread types: Type A (sharp point, coarse thread) for thin sheet metal and light plastic; Type B (blunt point, finer pitch) for heavier gauges and thicker materials. The correct type and length depend on the combined material thickness and the required thread engagement depth. Pre-drilling with a clearance hole slightly smaller than the screw's major diameter is recommended to reduce driving torque and ensure clean thread formation.

Available in countersunk and pan head formats, in Pozi and Phillips drive, in the sizes most commonly used in domestic and automotive applications at the DIY Hardware Store.

  • Type A for thin sheet metal and light plastics
  • Type B for heavier gauge materials and firmer substrates
  • No pre-tapping or nut required - cuts own thread
  • Countersunk and pan head formats available
  • Zinc-plated steel and stainless steel options
  • Pozi and Phillips drive recesses