Slotted Cylindrical Head Self-Tapping Screws, Pointless DIN 7971-F – UNI 6951-B – ISO 1481

Thread Pitch and Thread Form

DIN 7971-F self-tapping screws feature a continuous thread along the entire shank, designed to directly form the mating thread in the base material during installation.

They are suitable for fastening into thin sheet metal, light metal materials, and plastics. Depending on the thickness and hardness of the substrate, they may reduce or eliminate the need for pre-drilling. To ensure optimal performance, it is nevertheless recommended to comply with the hole diameters specified by the relevant standards, avoiding excessive tightening torque and unwanted stresses in the material.

The thread geometry provides high holding power, good pull-out resistance, and reliable long-term fastening performance.


Applicable regulations

DIN 7971 / F
UNI 6951 / B
ISO 1481


Head Type and Drive

The cylindrical head ensures uniform bearing on the fastening surface and allows stable assembly, making it particularly suitable for technical applications and mechanical assemblies.

The slotted drive allows the use of standard screwdrivers, ensuring ease of installation, accurate engagement, and reduced risk of head damage during tightening. This solution is ideal for applications requiring a clean, discreet, and functional finish.


Description and Applications

DIN 7971 self-tapping screws are manufactured from high-quality materials and are available with various surface finishes, including:

  • zinc-plated carbon steel, for standard applications with good corrosion resistance
  • A2 stainless steel, suitable for humid or moderately corrosive environments
  • A4 stainless steel, recommended for outdoor use or particularly aggressive environments


Screw length is measured from the point to the underside of the head, in accordance with international standards.

Thanks to their versatility and reliability, these screws are widely used in:

  • assembly of electronic and electromechanical components
  • furniture and light metal structures
  • light metal fabrication
  • general industrial applications on metal and plastic

They provide an effective solution for fast, precise, and durable fastening, reducing installation time and simplifying production processes.

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