STAINLESS STEEL THIRD LENGTH CENTRE GROOVE PINS DIN 1475

Third Length Centre Groove Pins DIN 1475 — Third Length Centre Groove Pins to DIN 1475 have their grooves confined to the central third of the pin only, leaving both ends plain, which suits assemblies built from three components stacked together where only the middle one is meant to grip the pin while the two outer parts simply pass over it with a closer, non-gripping fit. That's a distinct layout from every other grooved pin in the range: DIN 1471 and DIN 1473 grip along their full length, DIN 1472 and DIN 1474 grip along one half, and DIN 1475 grips only in the centre, which makes it the natural choice for pinning a bracket, bush, or lever centrally between two plates or side pieces, rather than for a simple two-part joint. The central grooved section generates enough interference fit to locate and lightly retain the middle component, while the plain ends are sized for a closer running or clearance fit in the outer parts, so the overall assembly stays aligned without the outer plates gripping the pin unintentionally. As with other grooved pins, standard drilled holes are sufficient throughout — no reaming is needed even in the gripping centre section, since the grooves themselves create the fit. Because retention is concentrated in a relatively short central section rather than along a full or half length, this type is generally better suited to locating and light retention than to carrying significant shear or pull-out load, and the exact holding capacity for a given size is worth checking against the application if the joint will see any meaningful working load. Grade choice is standard for the range: A2 stainless for typical indoor three-plate assemblies, A4 where the assembly is exposed outdoors, in washdown conditions, or to marine or de-icing salt environments. Diameter should be selected to suit the three-part hole arrangement, with particular attention to keeping the plain ends aligned with the outer components' hole sizes.

FAQs
How does DIN 1475 differ from the other grooved pin variants?
DIN 1471 and 1473 grip along their full length; DIN 1472 and 1474 grip along one half; DIN 1475 grips only in the centre, leaving both ends free, which suits assemblies with three-part alignment rather than a simple two-part joint.

Can DIN 1475 pins move axially once installed?
The plain ends are not designed to resist axial movement on their own; overall retention depends on the fit of the centre grooved section within its component.

Is DIN 1475 suitable for a heavily loaded three-plate joint?
It's better suited to alignment and light retention across three components than to a joint carrying significant load — where the middle component needs to be held firmly under real working force, it's worth reviewing whether a full or half-length grooved pin, sized to the actual plate arrangement, would give more secure retention.