Characteristics of Self-Drilling Screws or Drill Screws
The drill screws or self-drilling screws are used in cases where the processing is done with aluminum or other light metals. These screws already have the pre-formed hole and it forms the screw, for this it does not need the use of drill bits. The particular drill bit is given by the shearing (shearing is […]
Stainless Steel Cross Recessed Head Screws – Some doubt..
Cross recessed head screws: cheese head or pan head? That’s a dilemma worthy of Shakespearean Hamlet! But we shall see about how to resolve this particular problem.. Italy: a few words on the question of the legislation. The standard UNI 7687 has been still in force since 1977 and provides for the screws the presence […]