Pins

Pins - Dowel pins - Mécanindus pins

Pins

What are the different types of pins?
‍
At Gardette, we manufacture and stock different mechanical pins, with some of the main kinds being:

‍

Cylindrical dowel pins: pin types and advantages

‍

‍This pin is suitable for run-of-the-mill fastening applications, often used for positioning or hold purposes. It can be found in many mechanical component assemblies, e.g. for positioning engine or gearbox components.
‍
DIN 7 and ISO 2338 standards define the tolerance class H11 for the diameter. However, we also produce this pin at lower tolerances: H8 or M6.

‍Unlike other dowel pins, the DIN 6325 - ISO 8734 ground pin is made of steel that has been hardened then ground, giving it very tight tolerances: M6 or H6.
‍
These high-precision pins allow for micron-sized accuracy when fitting the pin in its housing. They are widely used in sectors such as aeronautics and industrial electronics, for aligning electronic systems in fuse boxes.

‍Suitable for blind holes, this pin has an air release flat to prevent air compression, eliminating the risk of damaging the hole and ensuring that the pin is not rejected by its housing. Pins with internal threads are ground with M6, H8 or H11 tolerance, depending on your particular requirements. This makes them ideal for use in mechanical engineering.
‍
As well as this, the pin's internal thread means it is fully extractable with a pin extractor tool, making for easy disassembly.

‍

Technical specifications of taper pins
‍

‍Taper pins made to DIN 1B - ISO 2339 standards are solid pins with rounded ends and a tapered body (taper angle 1:50). Made of high-carbon or stainless steel, they allow parts to be fixed or locked via friction.

‍The internally threaded version of the standard taper pin. The internal thread allows for easier removal of the pin. These pins are commonly used in assemblies that require frequent dismantling.

‍This model has a solid tapered base, with a threaded part of equivalent diameter at the pin's tip. This pin offers additional fixing power.

‍

Grooved pins: combining flexibility and security

‍
Grooved pins, as the name suggests, are equipped with grooves along their length which allow the pin to flex and compress in the hole. They ensure a perfect fit and excellent hold.

‍

Spring pins: suited to a multitude of environments

‍
DIN 1481 - ISO 8752 spring pins, also known as roll pins or tension pins, have the ability to compress when inserted, before then returning to their initial diameter. This pin's high elasticity allows it to remain firmly in place without the need for particularly high precision during assembly.

‍

Locking pins: immobilising, positioning and assembling

‍

‍The DIN 94 split pin, also known as a cotter pin, is split across its length, with two tines that are bent during installation. It is made of low-carbon or stainless steel. These pins are used to fasten axles and nuts, as well as movable parts in the automotive and agricultural sectors, among others.

This spring-type straight pin with a loop at one end is made of zinc-plated steel and offers quick, secure assembly. R-clips are widely used in the farming and building sectors to secure movable parts such as tractor accessories or scaffolding components.

‍Linch pins are a type of locking pin that click open and closed. Made of zinc-plated steel, they are ideal for quick joints.

‍This semi-circle-shaped pin, generally made of steel or stainless steel, is mainly used in joints that require regular dismantling (without specialised tools).

‍

Mecanizados Mein (Eibar, Spain): The European specialist in custom-made special pins

The integration of Mecanizados Mein into the Gardette Group strengthens our unique positioning in the global market for pins.

While most players limit themselves to distributing standard parts, our Eibar plant provides unparalleled industrial flexibility:

‍

  • Specialist in small and medium production runs: Rapid manufacturing of custom cylindrical and tapered pins based on drawings or samples.
  • Technical materials & complex alloys: Machining and grinding of nitriding steels, heat-resistant stainless steels (A4 / 316L, 17-4PH), bronze, brass, and titanium.
  • Integrated grinding service (in-house): Total control over complex geometries, micrometric tolerances, and large dimensions.

‍

Table of standards, tolerances, and pin applications

‍

Pin types ISO / DIN standards Standard tolerances Materials & surface treatments Areas of application
Ground dowel pin ISO 8734 / DIN 6325 m6, h6 Hardened 100Cr6 steel (60±2 HRC), A2/A4 stainless steel Aerospace, automotive, machine tools
Dowel pin with internal thread ISO 8735 / DIN 7979D m6, h8 Hardened steel or stainless steel, air outlet flange Blind holes, injection moulds, protective guard
Taper pin / Taper pin with internal thread ISO 2339 / ISO 8736 Taper ratio 1:50 C45E steel, A2/A4 stainless steel, Mein special alloys Precision tooling, detachable assemblies
Grooved pin (LGC) ISO 8740 à ISO 8747 Depending on the groove Mild steel, A2/A4 stainless steel (full/partial corrugation) Mass production, domestic appliances, agricultural machinery
Spring pin ISO 8752 / DIN 1481 Cold-drawn 55Si7 spring steel, A2 stainless steel Mechanical engineering, rail, construction

‍

Secure your supply chain with a leading European manufacturer

By entrusting your needs for pins At Groupe Gardette, you benefit from the power of a complete industrial ecosystem: the responsiveness of Key Responsive Manufacturing®, a permanent stock of 25,000 items and the capacity to machine your custom parts, from single units to large-scale production runs.

‍

Do you have a technical requirement or need a quote for your pin production runs?

‍Contact our technical sales team or upload your PDF / 3D CAD files directly via our contact form. 

‍

Pins

Pins - Dowel pins - Mécanindus pins

*Account required. Minimum order amount €50.
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Similar products

What are the different types of pins?
‍
At Gardette, we manufacture and stock different mechanical pins, with some of the main kinds being:

‍

Cylindrical dowel pins: pin types and advantages

‍

‍This pin is suitable for run-of-the-mill fastening applications, often used for positioning or hold purposes. It can be found in many mechanical component assemblies, e.g. for positioning engine or gearbox components.
‍
DIN 7 and ISO 2338 standards define the tolerance class H11 for the diameter. However, we also produce this pin at lower tolerances: H8 or M6.

‍Unlike other dowel pins, the DIN 6325 - ISO 8734 ground pin is made of steel that has been hardened then ground, giving it very tight tolerances: M6 or H6.
‍
These high-precision pins allow for micron-sized accuracy when fitting the pin in its housing. They are widely used in sectors such as aeronautics and industrial electronics, for aligning electronic systems in fuse boxes.

‍Suitable for blind holes, this pin has an air release flat to prevent air compression, eliminating the risk of damaging the hole and ensuring that the pin is not rejected by its housing. Pins with internal threads are ground with M6, H8 or H11 tolerance, depending on your particular requirements. This makes them ideal for use in mechanical engineering.
‍
As well as this, the pin's internal thread means it is fully extractable with a pin extractor tool, making for easy disassembly.

‍

Technical specifications of taper pins
‍

‍Taper pins made to DIN 1B - ISO 2339 standards are solid pins with rounded ends and a tapered body (taper angle 1:50). Made of high-carbon or stainless steel, they allow parts to be fixed or locked via friction.

‍The internally threaded version of the standard taper pin. The internal thread allows for easier removal of the pin. These pins are commonly used in assemblies that require frequent dismantling.

‍This model has a solid tapered base, with a threaded part of equivalent diameter at the pin's tip. This pin offers additional fixing power.

‍

Grooved pins: combining flexibility and security

‍
Grooved pins, as the name suggests, are equipped with grooves along their length which allow the pin to flex and compress in the hole. They ensure a perfect fit and excellent hold.

‍

Spring pins: suited to a multitude of environments

‍
DIN 1481 - ISO 8752 spring pins, also known as roll pins or tension pins, have the ability to compress when inserted, before then returning to their initial diameter. This pin's high elasticity allows it to remain firmly in place without the need for particularly high precision during assembly.

‍

Locking pins: immobilising, positioning and assembling

‍

‍The DIN 94 split pin, also known as a cotter pin, is split across its length, with two tines that are bent during installation. It is made of low-carbon or stainless steel. These pins are used to fasten axles and nuts, as well as movable parts in the automotive and agricultural sectors, among others.

This spring-type straight pin with a loop at one end is made of zinc-plated steel and offers quick, secure assembly. R-clips are widely used in the farming and building sectors to secure movable parts such as tractor accessories or scaffolding components.

‍Linch pins are a type of locking pin that click open and closed. Made of zinc-plated steel, they are ideal for quick joints.

‍This semi-circle-shaped pin, generally made of steel or stainless steel, is mainly used in joints that require regular dismantling (without specialised tools).

‍

Mecanizados Mein (Eibar, Spain): The European specialist in custom-made special pins

The integration of Mecanizados Mein into the Gardette Group strengthens our unique positioning in the global market for pins.

While most players limit themselves to distributing standard parts, our Eibar plant provides unparalleled industrial flexibility:

‍

  • Specialist in small and medium production runs: Rapid manufacturing of custom cylindrical and tapered pins based on drawings or samples.
  • Technical materials & complex alloys: Machining and grinding of nitriding steels, heat-resistant stainless steels (A4 / 316L, 17-4PH), bronze, brass, and titanium.
  • Integrated grinding service (in-house): Total control over complex geometries, micrometric tolerances, and large dimensions.

‍

Table of standards, tolerances, and pin applications

‍

Pin types ISO / DIN standards Standard tolerances Materials & surface treatments Areas of application
Ground dowel pin ISO 8734 / DIN 6325 m6, h6 Hardened 100Cr6 steel (60±2 HRC), A2/A4 stainless steel Aerospace, automotive, machine tools
Dowel pin with internal thread ISO 8735 / DIN 7979D m6, h8 Hardened steel or stainless steel, air outlet flange Blind holes, injection moulds, protective guard
Taper pin / Taper pin with internal thread ISO 2339 / ISO 8736 Taper ratio 1:50 C45E steel, A2/A4 stainless steel, Mein special alloys Precision tooling, detachable assemblies
Grooved pin (LGC) ISO 8740 à ISO 8747 Depending on the groove Mild steel, A2/A4 stainless steel (full/partial corrugation) Mass production, domestic appliances, agricultural machinery
Spring pin ISO 8752 / DIN 1481 Cold-drawn 55Si7 spring steel, A2 stainless steel Mechanical engineering, rail, construction

‍

Secure your supply chain with a leading European manufacturer

By entrusting your needs for pins At Groupe Gardette, you benefit from the power of a complete industrial ecosystem: the responsiveness of Key Responsive Manufacturing®, a permanent stock of 25,000 items and the capacity to machine your custom parts, from single units to large-scale production runs.

‍

Do you have a technical requirement or need a quote for your pin production runs?

‍Contact our technical sales team or upload your PDF / 3D CAD files directly via our contact form. 

‍

FAQ
Frequently asked questions
What standards are you certified to?
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We are certified to IATF 16949 and ISO 9001 standards.

Is the timeframe given the shipping date or the estimated delivery date?
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In all our offers & confirmation messages, we explicitly mention the goods' shipping date(s).

When is the sales department open?
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Our sales team is available:

From Monday to Thursday 8:30a.m.-12:00p.m. & 1:30p.m.-5:00p.m.

Fridays 8:30a.m.-12:00p.m. & 1:30p.m.-4:30p.m.

What is your CSR/QHSE approach?
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We are committed to Corporate Social Responsibility (CSR) and plan to obtain ISO 14001 and ISO 45001 certifications in the near future.

Are you concerned about the carbon footprint of your factory?
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We are currently putting together a multidisciplinary group with the aim of helping us reduce our carbon footprint. As part of this initiative, we carried out a complete carbon assessment (Scopes 1, 2 and 3) in 2023, allowing us to examine our overall environmental impact.