Oval-head socket actuating self-tapping sheet metal screws defined in the DIN 7973 standard published by the German Standardization Institute (DIN) are self-tapping screws on the substrate they are driven into, and are generally produced from thin metal. The oval countersunk head has an 80 degree countersunk with a slightly convex top so that when fully inserted the head rests slightly above the surface of the substrate for a finished look. The slot driver accepts a single blade screwdriver ideal for simple manual applications. These screws are used with pre-drilled, drilled or slotted pilot holes in sheet metal or other solid materials.
-basli-kilavuz-vidalar.jpg "DIN 7973 Oval Head Slot Drive Tap Screw - ISO 1483 Slotted Raised Countersunk (Oval) Head Tap Screws")
Similarly, the ISO 1483 standard, published by the International Organization for Standardization (ISO), describes the specifications of countersunk (oval) head tapping screws with thread sizes from ST 2,2 to ST 9,5 (ISO 1483 Countersunk (oval) head tapping screws).
In the DIN 7973 standard, the requirements for the oval head slot drive lead screw are listed under the following headings:
The raised countersunk head slotted self tapping screw (oval head screw) is used where the finished surface requires a flush fixing unit, like flat head screws, also on a round smooth looking top surface for decoration purposes. These products are manufactured from steel, brass and stainless steel for different applications. Austenitic steel is a type of austenitic stainless steel. It contains a high percentage of nickel and chromium and provides great strength and corrosion resistance.
Among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, within the scope of DIN 7973 standard, for oval head slot drive guide screw and within the scope of ISO 1483 standard, slotted raised countersunk also provides testing services for oval head lead screws.
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