DIN 1473 Grooved Dowel Pin

DIN 1473 is a cylindrical grooved dowel pin with grooves running the full length on three sides and a chamfer on one end. Materials: steel, electro-galvanized steel, stainless steel A2, A4. It is a straight circular cylinder. Along the full length of the shaft it has three grooves cut into the body, which secure it in the mating planes, assemblies or parts. The name comes from the German «Stift». The part is standardized and complies with EN ISO 8740. The chamfer on one end makes it easier to install the fastener into its working position. Equivalent: ISO 8740.

DIN 1473

The dowel pin operates in joints with low axial and other force loads, so it is made from grade A2 and A4 steels with an electro-galvanic zinc coating. The zinc coating protects the fastener from corrosion and from exposure to weak-concentration acids. These steels withstand shear and torsion loads well. Fasteners made from stronger steels and alloys — usually carbon steel — are produced by fastener manufacturers to pre-order.

The main customers for this type of fastener are instrument makers and machine builders: any machine consists of dozens or hundreds of assemblies and parts that must be joined precisely and securely. A cylindrical pin with grooves running its full length is used for this purpose. The tapered cut on one end allows the cylinder to first be positioned in the assembly being joined, then set into the required position using special tools. Fixing is carried out with special screws or bolts with a conical tip: the pointed part of the bolt or screw drives into the grooves until it seats fully, preventing the joined parts, planes or assemblies from rotating relative to one another.

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FLOK supplies the DIN 1473 dowel pin from stock and to order. Delivery terms can be arranged, including delivery by the supplier’s transport.