Pins

Pins are fasteners made in the form of cylindrical or tapered rods. Their main purpose is to ensure a fixed and reliable connection of parts in a strictly defined position. Pins also allow relatively small mechanical loads to be redistributed or transmitted.

Choosing pins

Taper pins are more versatile than cylindrical ones: they can be used repeatedly without losing positioning accuracy of the fastened element.

Many different fasteners are used in assembly, but it is pins that provide the maximum reliability and precision of fastening. During installation, parts are often first positioned in the required position relative to each other, then a hole is made at the required location, and after reaming, pins are installed there. This method provides such a reliable connection between parts that shifting them relative to each other is extremely difficult even under significant loads.

Taper-type pins are a more advanced design. Their shape allows the pin to be quickly removed when disassembling the structure, while preventing spontaneous disassembly of the fastened parts. The positioning accuracy of the elements is not reduced in the process. When selecting pins of this design, the taper ratio is taken into account: in mechanical engineering, a ratio of 1:50 is typically used.

Pins are used in various areas of installation and construction: in instrument making and engineering, furniture production, manufacturing of accessories, as well as in medicine — surgery and dentistry.

Materials with high strength characteristics are used to manufacture pins: non-ferrous metals and metal alloys, various grades of steel, durable plastic, wood — depending on specific technological requirements.

Pins come not only in standard cylindrical or taper forms, but also with internal thread, with grooves, hardened and unhardened, spring pins. Taper pins today are offered in several variants: in standard design, with internal thread, and also with an external thread end.

A pin is not a minor fastening element: the durability and reliability of the entire assembled structure may depend on its quality and correct selection.