Self-tapping screw for iron and aluminum

Widely used in the field of industrial production such as home appliances, automotive, electronics, used for the assembly of sheet metal and its components.
MATERIALS: CARBONITRIDING STEEL - INOX A2 AISI 304 - INOX A4 AISI 316 - INOX AISI 410 - INOX AISI 430 - ALUMINIUM

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Send us a request for quotation specifying size and quantity and we will find the ideal solution for you!


Professional Fixing Solutions

Self-tapping screws represent one of the most versatile and effective solutions for the quick and secure fastening of metal and plastic materials, without the need for pre-existing threads.

Features and Operation

Thanks to their sharp point and high-penetration thread, these screws create an internal thread directly in the material, ensuring a strong, tensile-resistant connection. They are ideal for thin sheet metal, light alloys, rigid plastics, and pre-drilled supports.


Available Types

The screws are available in various configurations to adapt to any application requirement:

  • Head: cylindrical, countersunk, countersunk with cap, hex, hex with flange, dome head, dome head with flange
  • Impression: Phillips, Pozi, 6-lobe, slotted screwdriver, Phillips screwdriver combination, 6-lobe screwdriver combination
  • Materials: galvanized steel, A2 stainless steel, A4 stainless steel, AISI 410 hardened and tempered
  • Finish: galvanized White, black, phosphated, and other treatments available upon request.
  • Diameters from 2.2 to 6.3 mm, lengths from 4.5 to 150 mm.


Typical applications

These screws are used in numerous sectors, including:

  • Light and metal carpentry
  • Assembly on aluminum and steel profiles
  • Installation of electrical and electronic components
  • Automated industrial assembly


How to Purchase

Consult our technical catalog to identify the most suitable screw. For quote requests, attach the code or technical specifications and send them to: info@milanoviti.it. Our technical team is available to help you choose the ideal fastener.

FAQ – Self tapping screws

Self-tapping screws are fasteners designed to create their own thread in the material they are screwed into. No pre-existing thread is required: the screw cuts directly into the pilot hole, ensuring a solid and secure fit.

  • Self-tapping: creates the thread, but requires a pre-existing hole
  • Self-drilling: has a drill tip that drills and threads in a single step

Self-tapping screws are suitable for:

  • Sheet metal (steel, aluminum, stainless steel)
  • Rigid plastic
  • Soft wood
  • Composite materials (with pre-drilled holes)

The most common configurations include:

  • Cylindrical head
  • Countersunk head
  • Countersunk head with cap
  • Hexagonal head
  • Hexagonal head with flange
  • Round head
  • Round head with flange

With Phillips cross recess, Pozi cross recess, 6-lobe recess, screwdriver recess, cross screwdriver combi recess, 6-lobe screwdriver combi recess


Self-tapping screws are available in:

  • Galvanized steel (white or black)
  • A2 stainless steel (non-aggressive outdoor environments)
  • A4 stainless steel (marine, chemical environments)
  • Aisi 410 tempered (these are stainless steel screws that undergo heat treatment to increase mechanical strength)

The main parameters are:

  • Material to be drilled
  • Diameter and length
  • Type of head and footprint
  • Finish and corrosion resistance

Upon specific request, our staff can provide you with all the details for ideal conditions of use.

Yes, for self-tapping screws, a correctly sized pilot hole is recommended. Self-drilling screws, on the other hand, can drill directly.

Not recommended: after initial use, the thread in the material may no longer guarantee an optimal seal. In some cases, a slightly longer screw or one with a larger diameter can be used.

You can send a request to info@milanoviti.it indicating:

  • Quantity required
  • Dimensions and finish
  • Any technical drawings or item codes

Our technical-commercial staff will respond promptly with customized quotes.

Yes, we offer:

  • Packaging in cardboard boxes
  • Mixed kits on request
  • Neutral packaging or packaging with customised labels