Groove Pin, Tapered, Metric Sizes
What Is a Tapered Groove Pin?
A tapered groove pin combines two design features in a single fastener: a slight taper along the shank, similar to a taper pin, for precise and repeatable alignment of mating parts, and rolled grooves that displace material outward to grip the walls of a standard drilled hole by spring pressure.
This combination lets the pin provide the accurate self-centering alignment associated with tapered pins while still installing into a standard drilled hole rather than the precision reamed taper hole a plain taper pin requires. It is a common choice where repeatable alignment matters but the added cost of reaming a tapered hole is not justified.
Key Features and Benefits
- Tapered Shank: self-centers and aligns mating parts more precisely than a straight grooved pin.
- Grooved for Secure Retention: rolled grooves grip a standard drilled hole by spring pressure.
- No Precision Reaming Required: avoids the reamed tapered hole a plain taper pin needs.
- Repeatable Alignment: useful where parts need to return to the same position after disassembly.
- Cost Effective Alternative to Taper Pins: combines alignment benefits with simpler hole preparation.
Materials and Finishes
- Steel: standard material for general purpose grooved pins.
- Plain or Zinc Plated Finish: options depending on the corrosion resistance needed.
Standards Compliance
- ISO 8744, Grooved pins, tapered
- DIN 1470, Grooved pins, tapered
Size Range and Availability
Available in a full metric size range, sold individually or in bulk quantities.
Related Categories and Products
Frequently Asked Questions (FAQs)
1. What is a tapered groove pin used for?
It's used where mating parts need precise, repeatable alignment, similar to a taper pin, but without requiring a precision reamed tapered hole.
2. How is a tapered groove pin different from a standard taper pin?
A standard taper pin needs a precisely reamed tapered hole for a snug fit, while a tapered groove pin's rolled grooves grip a standard drilled hole by spring pressure, avoiding the reaming step.
3. How is a tapered groove pin different from a full length or round head groove pin?
Those styles have a straight, non-tapered shank. A tapered groove pin adds a taper along its length for improved self-centering and alignment of mating parts.
4. Does a tapered groove pin still need a reamed hole?
No, the grooved shank is designed to grip a standard drilled hole, avoiding the reaming a plain taper pin requires.
5. Can a tapered groove pin be reused after removal?
It can typically be removed and reinstalled, though repeated removal may reduce the grooves' holding force over time.
6. What sizes are available?
We stock a full metric size range, available individually or in bulk quantities.
