DIN 915 Set Screw with Cylindrical Point

The German standard DIN 915 covers headless set screws with cylindrical point. This is specialized fastener hardware designed to secure parts relative to each other and protect them from displacement. It is used in mechanisms and assemblies subject to dynamic and vibration loads.

Structurally, the set screw is a metal rod with full metric thread; one end features an internal hex socket recess.

Production and installation features

Set screws are designed for installation into a pre-tapped threaded hole; they ensure a secure fixation of parts and prevent their displacement. For reliable fastening, the screw features a threadless cylindrical end section that provides a high-strength grip. The internal recess on the end face of the screw allows it to be tightened securely with a hex key. This element provides a high tightening force, so the screw reliably secures the joint.

Installation requires pre-drilling a hole of the corresponding diameter in the parts and tapping a thread with the required pitch. The DIN 914 set screw can have a thread diameter from 3 to 20 mm, and the length can range from 6 to 60 mm. Similar fastener products are manufactured to the Russian standard GOST 11075 and the international standard ISO 4028.

Set screws are used in mechanical engineering: in the manufacture of vehicles, machine tools, industrial equipment, various instruments, and more. This type of fastener is also in demand in construction, where it is used for assembling and installing metal frames. Set screws are used wherever it is necessary to ensure the correct positioning of parts relative to each other and prevent their displacement under external force.

Materials used to manufacture screws

Various materials are used to manufacture set screws, the choice depending on the operating conditions of the fastener products. The primary material is 45H steel, which can be used without a protective coating or with electroplated zinc coating. The thin layer of zinc prevents direct contact of the metal with an aggressive external environment, which increases the service life of the fastener.

For use in conditions of constant high humidity, temperature fluctuations and other destructive effects, screws made of acid-resistant stainless steel A2 and A4 are used. These materials are not subject to corrosion and can last for decades in any conditions. Fasteners are also manufactured from non-ferrous metal alloys and plastic — these materials are not subject to corrosion and can be used outdoors.

Terms of purchasing fastener products

FLOK supplies DIN 915 screws and other types of fasteners. The products are manufactured in accordance with standards and undergo quality control. FLOK’s catalogue makes it possible to select equivalents with the required characteristics.

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