STAINLESS STEEL HALF LENGTH TAPER GROOVED PINS DIN 1472

Half Length Taper Grooved Pins DIN 1472 — Half Length Taper Grooved Pins to DIN 1472 carry the taper groove over only half their length, leaving the remainder a plain, closer-fitting shank, so grip is deliberately concentrated in one component while the pin sits more freely — sometimes with a slight running clearance — in the other. That arrangement suits assemblies where only one of the two joined parts should actually retain the pin: a bracket or lever that needs to be gripped firmly at its base while the pin passes through, or pivots within, a second component that shouldn't be locked rigidly to it. Compared with the full-length grooved pin (DIN 1471), it takes noticeably less force to drive home, since only half the shank is generating the interference fit, which matters where the base component is thin, delicate, or where minimising installation force reduces the risk of distorting the surrounding material. As with any grooved pin, neither half needs a reamed hole — a standard drilled hole is sufficient in the grooved section, since the ridges themselves create the grip, while the plain half simply needs a hole sized for the fit (clearance or light running) intended in that component. Choosing between this and its mirror-image sibling, DIN 1474, comes down to which end of the assembly the grooved, gripping section needs to sit at relative to how the pin is driven in — DIN 1472 has the taper and groove at the leading, piloted end, while DIN 1474 reverses that arrangement, so drawing geometry and assembly sequence should decide which is specified. Grade selection is standard for the pin range: A2 stainless for most general engineering and mechanical assembly, A4 where the assembly faces washdown, marine, or de-icing salt exposure and long-term grip in the grooved section matters more than the small cost difference. Diameter and length should be chosen so the grooved half fully engages the gripping component while the plain half is sized to the running or clearance fit needed in the second.

FAQs
How does DIN 1472 differ from DIN 1471?
DIN 1471 grips along its full length; DIN 1472 grips over only half its length, leaving the remainder a plain shank, and generally needs less force to install as a result.

How does DIN 1472 differ from DIN 1474?
DIN 1472 is half length grooved with a taper (chamfered) pilot end within the grooved section, whereas DIN 1474 reverses the arrangement, with the taper and groove positioned at the opposite end. The choice depends on which end of the assembly needs the piloted, self-aligning insertion.

What hole tolerance is needed for the plain half of the pin?
The plain section isn't intended to grip, so its hole can be a standard clearance or light running fit depending on whether that component needs to pivot or simply pass over the pin — it doesn't need the reamed precision of a dowel pin hole.