Cup-end metric hexagon socket set screws, defined in the DIN 916 standard published by the German Standardization Institute (DIN), are headless and full-threaded screws with an internal hexagonal driver at one end and a cup-shaped (concave) surface at the other end. They must be passed through pre-drilled aligned holes that allow tightening against the countershaft. This type of set screw is best used with a spindle made of softer material, as the concave surface grips well and resists movement well. Cup-end hex socket set screws are manufactured in steel and stainless steel, with diameters ranging from M1 to M24 and lengths up to 90 mm.
The requirements in the DIN 916 standard are under the following headings:
Similarly, in the ISO 4029 standard published by the International Standards Organization (ISO), the characteristics of round-tipped and threaded hexagon socket set screws from M1,6 to M24 and belonging to product class A are described (ISO 4029 Hexagon socket set screws with cup points). In special cases, if specifications other than those listed in this standard are required, existing international standards such as ISO 261, ISO 898-5, ISO 965-2, ISO 3506-3 and ISO 4759-1 should be followed.
Essentially, the DIN 916 standard is a modified version of the ISO 4029 standard.
Cup-end hex socket set screws are headless metric threaded fasteners with a hex socket drive recessed in the screw body and a cup-shaped recess on the end, and are used to connect two objects together by snapping one object and applying pressure to the other object.
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 916 standard, for cup-tipped hexagon socket set screws and within the scope of ISO 4029 standard, cup-point hexagon It also provides testing services for socket set screws.
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