The specifies the requirements for metric tee nuts with prongs, which are widely used to create strong, reliable steel thread inserts in wood, plastic, and composite materials. This comprehensive guide covers the technical specifications, dimensions, materials, and installation procedures outlined in the DIN 1624 standard. 1. What is the DIN 1624 Standard?
The DIN 1624 standard affects various industries that utilize cold-rolled flat products, including:
Features a flange with 3 or 4 prongs that embed into soft materials like wood to prevent rotation. Common Sizes: Available in metric threads from M3 to M20 .
It means the steel is cold-rolled to a smooth, shiny finish (often with surface roughness Ra ≤ 1.0 µm), then typically oiled to prevent rust. It is not hot-rolled, pickled, or coated. din 1624 standard pdf
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The prefix "RRSt" stood for Rimmed or Rephosphorized Steel for improved drawing properties.
: Options include bright (RPG), matt (m), and surfaces intended for electroplating (UG). The specifies the requirements for metric tee nuts
When installed, the barrel is inserted into a pre-drilled hole in the wood. The nut is then driven flush with the surface, forcing the prongs into the material. These prongs anchor the nut firmly, preventing it from rotating when a mating bolt is tightened. Key Applications
According to the standard, these fasteners are generally manufactured from materials that allow for the forming of the prongs without cracking.
: A general commercial quality grade suitable for basic bending and forming. What is the DIN 1624 Standard
, which represents a deep-drawing quality steel suitable for producing thin sheets in strips up to 3 mm thick. Surface Types
The standard outlines the requirements for steel grades intended for forming and surface refinement. Key technical highlights include: Steel Grades : A prominent grade mentioned under this standard is
Provides standard corrosion resistance with a bright silver finish.