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Pins · ISO 8734 / DIN 6325

A4 Stainless Steel Dowel Pins

A4 Stainless Steel Dowel Pins reference image

For dowel pins in A4 Stainless Steel, the controlling selection factors are corrosion exposure, strength requirement and service temperature. The grade data for A4 Stainless Steel (A4-80 (316)) is summarized below together with every size supplied.

Why Choose A4 Stainless Steel for Dowel Pins

Specified for marine, coastal and chemical applications. For dowel pins, this matters when superior, including marine and chloride environments is the primary requirement.

Mechanical & Physical Properties

Grade designationA4-80 (316)
Magnetic responseLargely non-magnetic
Service temperatureapprox. -200 °C to +400 °C
Corrosion characteristicSuperior, including marine and chloride environments

Corrosion Behavior in Service

A4 (316) adds 2–3% molybdenum to the A2 (304) composition, which dramatically improves resistance to chloride-pitting corrosion. For Dowel Pins in marine, coastal, swimming-pool or food-processing environments, A4 is the default selection.

Galvanic & Galling Considerations

Two important notes for stainless dowel pins: (1) stainless can gall on stainless threads under load — use a thread lubricant or anti-galling compound, especially for M6 and below; (2) when joined to aluminum or galvanized steel, stainless can drive galvanic corrosion of the less-noble metal in wet service — isolate with a coating or sleeve where appropriate.

Sizes of Dowel Pins Available in A4 Stainless Steel

Nominal diameter (mm)Diameter toleranceCommon length range (mm)MaterialHardnessReference standardNotes
1.0h64~10Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
1.2h64~12Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
1.5h64~16Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
2.0h66~20Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
2.5h66~24Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
3.0h68~30Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
4.0h68~40Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
5.0h610~50Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
6.0h612~60Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
8.0h616~80Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
10.0h620~100Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
12.0h625~120Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
16.0h630~160Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
20.0h635~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
25.0h645~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
30.0h650~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
40.0h660~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
50.0h680~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quote

Adjust the parameters in the drawing above and click "Request this configuration" to send the exact specification straight to this form.

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Specification
Business Information

Dimensions & Specifications (ISO 8734 / DIN 6325)

Nominal diameter (mm)Diameter toleranceCommon length range (mm)MaterialHardnessReference standardNotes
1.0h64~10Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
1.2h64~12Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
1.5h64~16Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
2.0h66~20Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
2.5h66~24Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
3.0h68~30Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
4.0h68~40Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
5.0h610~50Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
6.0h612~60Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
8.0h616~80Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
10.0h620~100Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
12.0h625~120Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
16.0h630~160Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
20.0h635~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
25.0h645~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
30.0h650~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
40.0h660~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit
50.0h680~200Alloy steelHardenedISO 8734 / DIN 6325Both ends chamfered, precision fit

Frequently Asked Questions

Are A4 Stainless Steel Dowel Pins magnetic?

A4 Stainless Steel Dowel Pins are largely non-magnetic.

What corrosion resistance do A4 Stainless Steel Dowel Pins offer?

A4 Stainless Steel Dowel Pins provide superior, including marine and chloride environments with a service range of approx. -200 °C to +400 °C.

Should I choose A4 Stainless Steel or A2 (304) for Dowel Pins?

For Dowel Pins, A4 Stainless Steel suits general indoor and outdoor use; A2 (304) is preferred for marine, coastal and chemical environments. Choose by corrosion exposure first.

Can A4 Stainless Steel Dowel Pins gall during installation?

Yes — stainless on stainless is prone to thread galling under load, especially at smaller sizes. Use an anti-galling lubricant or wax thread compound, and slow the tightening rate where possible.

How do I request a quotation?

Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.