DIN7983 ISO14586 Tapping screws with caps.
DIN7983 ISO14587 Boxed assortments with tapping screws.
Metric DIN 7983C is a cross recessed raised countersunk (oval) head tapping screws. These screws are designed to cut threads into pre-drilled untapped holes of the substrate into which they are screwed. The recommended pilot hole sizes vary,depending on the diameter of the screw to be used and thickness of the substrate material. These screws are available in zinc plated steel as well as stainless steel A2 and A4.