---
title: "What Are Grooved Pins (DIN 1471–1474) Used For?"
description: "Grooved Pins (DIN 1471–1474) (DIN 1473) are used for locating and fixing in a plain drilled hole, where a solid dowel would need a reamed hole and a press."
url: https://engineeringhardware.com/applications/grooved-pins-din-1471/
source: Engineering Hardware & Fasteners
---

# What Are Grooved Pins (DIN 1471–1474) Used For?

Pins · DIN 1473 · Application guide

Typical applications, the industries that specify grooved pins (din 1471–1474), and how to choose the right size, material and finish for the joint.

Grooved Pins (DIN 1471–1474) are used for locating and fixing in a plain drilled hole, where a solid dowel would need a reamed hole and a press. They are manufactured to DIN 1473, and selection is driven by the nominal diameter, the fit and tolerance the assembly requires, and the service environment.

- **Primary duty:** Locating and fixing in a plain drilled hole, where a solid dowel would need a reamed hole and a press
- **Governing standard:** DIN 1473
- **Nominal diameter range:** 2 mm to 10 mm
- **Category:** Pins

Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation.

![What Are Grooved Pins (DIN 1471–1474) Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/09/Grooved-Pins.webp)

Grooved Pins (DIN 1471–1474) are used primarily for locating and fixing in a plain drilled hole, where a solid dowel would need a reamed hole and a press. This page lists the industries and assemblies where they are specified, the selection criteria that matter for each application, installation practice, and the cases where a different fastener type is the correct choice. Parts are supplied to DIN 1473. Stocked across roughly 2 mm to 10 mm, they cover general to heavy-duty work.

## Typical Applications for Grooved Pins (DIN 1471–1474)

The most common settings where these are specified:

- **Fabrication & metalwork:** bench and on-site assembly of steel frames, enclosures and weldments.
- **Jigs & fixtures:** precise location of tooling plates and locating features.
- **Linkages & hinges:** pivot points carrying light shear.
- **Machine alignment:** dowelling mating housings so they reassemble in the same position.
- **General machine building:** fastening covers, brackets, motors and sub-assemblies on production equipment.

Product catalog

## Related Grooved Pins products

[![Good Quality Grooved Pins 1/3 Length Center Grooved DIN 1475](https://img.engineeringhardware.com/Good-Quality-Grooved-Pins-1-3-Length-Center-Grooved-DIN-1475.webp)](https://engineeringhardware.com/product/good-quality-grooved-pins-1-3-length-center-grooved-din-1475/)

Taper, Grooved & Knurled Pins

### [Good Quality Grooved Pins 1/3 Length Center Grooved DIN 1475](https://engineeringhardware.com/product/good-quality-grooved-pins-1-3-length-center-grooved-din-1475/)

Stainless Steel · DIN

**US$0.012**MOQ 1,000 pieces

[![Types Groove Grooved Pin](https://img.engineeringhardware.com/Types-Groove-Grooved-Pin.webp)](https://engineeringhardware.com/product/types-groove-grooved-pin/)

Taper, Grooved & Knurled Pins

### [Types Groove Grooved Pin](https://engineeringhardware.com/product/types-groove-grooved-pin/)

Stainless Steel/Carbon Steel/Special Alloy/Ti · ISO, GS, RoHS, CE

**US$0.048 – 6.00**MOQ 100 pieces

[![Stainless Steel Carbon Steel DIN1474 Grooved Pins](https://img.engineeringhardware.com/Stainless-Steel-Carbon-Steel-DIN1474-Grooved-Pins.webp)](https://engineeringhardware.com/product/stainless-steel-carbon-steel-din1474-grooved-pins/)

Taper, Grooved & Knurled Pins

### [Stainless Steel Carbon Steel DIN1474 Grooved Pins](https://engineeringhardware.com/product/stainless-steel-carbon-steel-din1474-grooved-pins/)

Iron · ISO, GS, RoHS, CE

**US$0.12 – 1.20**MOQ 10,000 pieces

[![Grooved Pins Full Length Parallel Grooved with Chamfer DIN1473](https://img.engineeringhardware.com/Grooved-Pins-Full-Length-Parallel-Grooved-with-Chamfer-DIN1473-2.webp)](https://engineeringhardware.com/product/grooved-pins-full-length-parallel-grooved-with-chamfer-din1473-2/)

Taper, Grooved & Knurled Pins

### [Grooved Pins Full Length Parallel Grooved with Chamfer DIN1473](https://engineeringhardware.com/product/grooved-pins-full-length-parallel-grooved-with-chamfer-din1473-2/)

Grooved Pins · Stainless Steel

**US$0.42**MOQ 10,000 pieces

[![Good Quality Grooved Pins 1/3 Length Center Grooved DIN 1475](https://img.engineeringhardware.com/Good-Quality-Grooved-Pins-1-3-Length-Center-Grooved-DIN-1475-2.webp)](https://engineeringhardware.com/product/good-quality-grooved-pins-1-3-length-center-grooved-din-1475-2/)

Taper, Grooved & Knurled Pins

### [Good Quality Grooved Pins 1/3 Length Center Grooved DIN 1475](https://engineeringhardware.com/product/good-quality-grooved-pins-1-3-length-center-grooved-din-1475-2/)

Grooved Pins · Stainless Steel

**US$0.42**MOQ 10,000 pieces

[![Half Length Taper Grooved Pins](https://img.engineeringhardware.com/Half-Length-Taper-Grooved-Pins.webp)](https://engineeringhardware.com/product/half-length-taper-grooved-pins/)

Taper, Grooved & Knurled Pins

### [Half Length Taper Grooved Pins](https://engineeringhardware.com/product/half-length-taper-grooved-pins/)

Iron · Zinc plated

**US$0.36 – 3.60**MOQ 10,000 pieces

[View all Taper, Grooved & Knurled Pins →](https://engineeringhardware.com/fastener-products/pins-dowel-fasteners/taper-grooved-knurled-pins/) [Full product catalog](https://engineeringhardware.com/products/)

## How to Specify Grooved Pins (DIN 1471–1474) for Your Application

- **Size:** Select on nominal diameter, then on the hole tolerance and fit class — the fit, not the diameter alone, determines whether the part locates or slips. This product spans 2 mm–10 mm; check the full table below for the exact dimensions of each size.
- **Material:** Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- **Environment:** For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- **Standard:** This product is supplied to DIN 1473. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.

## Installation & Assembly Practice

- Ream the hole to the specified fit class; a dowel pressed into a drilled-only hole will not locate accurately.
- Press pins in with steady force rather than hammer blows where possible, and chamfer the hole entry.

## Common Selection Mistakes with Grooved Pins (DIN 1471–1474)

- Using a dowel pin as a load-carrying shear bolt — dowels locate, they are not sized for sustained shear.
- Ignoring the fit class: a locational fit and an interference fit need different hole tolerances.

## Where Grooved Pins (DIN 1471–1474) Are Not the Right Choice

Not for carrying significant tensile or repeated heavy shear loads — use a bolt or a keyed joint for that.

Custom manufacturing · Made to drawing

## Need a grooved pins (din 1471–1474) outside the standard range?

Diameter, length, tolerance class, hardness and end form are specifiable. Ground diameters are held after heat treatment rather than before. Made by cold heading or turning.

Minimum order from 2,000 pieces; samples within 7 days of drawing approval.

[Custom pin manufacturing](https://engineeringhardware.com/custom/pins/)[Send a drawing](https://engineeringhardware.com/custom/pins/#rfq)

## Technical Drawing

Dimensioned line drawing of 2 Grooved Pins (DIN 1471–1474) to DIN 1473. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.

- **Hole diameter H11 (mm):** 2.0
- **Length L (mm):** 10
- **Groove form:** Full-length parallel
- **Double shear (kN):** 2.6
- **Hole preparation:** Drilled H11
- **Material:** Steel, case hardened

## Dimensions & Specifications (DIN 1473)

| Nominal diameter d (mm) | Hole diameter H11 (mm) | Length L (mm) | Groove form | Double shear (kN) | Hole preparation | Material | Reference standard |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | 2.0 | 10 | Full-length parallel | 2.6 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 3 | 3.0 | 16 | Full-length parallel | 5.9 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 4 | 4.0 | 20 | Full-length parallel | 10.5 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 5 | 5.0 | 26 | Full-length parallel | 16.4 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 6 | 6.0 | 32 | Full-length parallel | 23.6 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 8 | 8.0 | 40 | Full-length parallel | 42.0 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 10 | 10.0 | 50 | Full-length parallel | 65.6 | Drilled H11 | Steel, case hardened | DIN 1473 |

Inside the plant

## Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

1. ![Wire rod feeding into a cold heading machine](https://engineeringhardware.com/wp-content/uploads/2026/08/09-wire-rod-feed-cold-heading-machine.webp) 01 **Cold heading** Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail. Head dimensions and under-head radius checked at set-up and per shift.
2. ![Thread rolling machine producing bolt threads](https://engineeringhardware.com/wp-content/uploads/2026/08/03-thread-rolling-machine-bolt-production.webp) 02 **Thread rolling** Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch. Go / no-go ring gauges to ISO 965 tolerance class 6g.
3. ![Baskets of bolts staged for heat treatment](https://engineeringhardware.com/wp-content/uploads/2026/08/05-heat-treatment-baskets-black-bolts.webp) 03 **Heat treatment** Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it. Core hardness and tensile tested per lot to ISO 898-1.
4. ![Zinc plated bolts in a treatment basket](https://engineeringhardware.com/wp-content/uploads/2026/08/23-zinc-plated-bolts-treatment-basket.webp) 04 **Surface treatment** Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list. Coating thickness and neutral salt spray hours to ISO 9227.

## Frequently Asked Questions

### What are Grooved Pins (DIN 1471–1474) used for?

Locating and fixing in a plain drilled hole, where a solid dowel would need a reamed hole and a press. They are supplied to DIN 1473.

### Which industries use Grooved Pins (DIN 1471–1474)?

They are commonly specified in general machine building, maintenance & repair (mro) and fabrication & metalwork, among other sectors.

### How do I choose the right size of Grooved Pins (DIN 1471–1474)?

Select on nominal diameter and on the fit the assembly requires. This product is available from 2 mm to 10 mm; the full dimension table on this page lists each size.

### What material should Grooved Pins (DIN 1471–1474) be for outdoor use?

For damp, coastal or chemical environments specify A4 (316) stainless or a suitably coated steel. For indoor or dry use, A2 (304) stainless or zinc-plated steel is normally adequate.

### Can I get a quote for Grooved Pins (DIN 1471–1474) in the size and material I need?

Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time.

## Related Pages

Product page: [Grooved Pins (DIN 1471–1474) — specifications & sizes](https://engineeringhardware.com/fastener/grooved-pins-din-1471/)

### Grooved Pins (DIN 1471–1474) Specification Guides

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