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Bolts · GB/T 901 / DIN 939

A2 Stainless Steel Equal-End Stud Bolt

A2 Stainless Steel Equal-End Stud Bolt reference image

A2 Stainless Steel Equal-End Stud Bolt are stocked to GB/T 901 / DIN 939. The grade provides good general corrosion resistance and is largely non-magnetic; the practical service range is approx. -200 °C to +400 °C. Property data, grade comparison and the full size table follow.

Why Choose A2 Stainless Steel for Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093)

The most common stainless grade for indoor and general outdoor fasteners. For equal-end stud bolt — gb/t 901 / din 939 (series 093), this matters when good general corrosion resistance is the primary requirement.

Mechanical & Physical Properties

Grade designationA2-70 (304)
Magnetic responseLargely non-magnetic
Service temperatureapprox. -200 °C to +400 °C
Corrosion characteristicGood general corrosion resistance

Corrosion Behavior in Service

A2 (304) gives excellent atmospheric and most-water corrosion resistance and is the most common stainless for Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093) in indoor and general outdoor service. In chloride-bearing environments (marine air, road salt, swimming pools) consider stepping up to A4 (316).

Galvanic & Galling Considerations

Two important notes for stainless equal-end stud bolt — gb/t 901 / din 939 (series 093): (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 Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093) Available in A2 Stainless Steel

Thread sizePitch (mm)Length L (mm)Engagement depth bm (mm)MaterialReference standard
M61.0508Cl. 8.8 alloy steelDIN 939 / GB/T 901
M81.256010Cl. 8.8 alloy steelDIN 939 / GB/T 901
M101.58015Cl. 8.8 alloy steelDIN 939 / GB/T 901
M121.7510018Cl. 8.8 alloy steelDIN 939 / GB/T 901
M142.012021Cl. 8.8 alloy steelDIN 939 / GB/T 901
M162.015024Cl. 8.8 alloy steelDIN 939 / GB/T 901
M202.518030Cl. 8.8 alloy steelDIN 939 / GB/T 901
M243.020036Cl. 8.8 alloy steelDIN 939 / GB/T 901
M303.524045Cl. 8.8 alloy steelDIN 939 / GB/T 901
M364.028054Cl. 8.8 alloy steelDIN 939 / GB/T 901

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.

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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 (GB/T 901 / DIN 939)

Thread sizePitch (mm)Length L (mm)Engagement depth bm (mm)MaterialReference standard
M61.0508Cl. 8.8 alloy steelDIN 939 / GB/T 901
M81.256010Cl. 8.8 alloy steelDIN 939 / GB/T 901
M101.58015Cl. 8.8 alloy steelDIN 939 / GB/T 901
M121.7510018Cl. 8.8 alloy steelDIN 939 / GB/T 901
M142.012021Cl. 8.8 alloy steelDIN 939 / GB/T 901
M162.015024Cl. 8.8 alloy steelDIN 939 / GB/T 901
M202.518030Cl. 8.8 alloy steelDIN 939 / GB/T 901
M243.020036Cl. 8.8 alloy steelDIN 939 / GB/T 901
M303.524045Cl. 8.8 alloy steelDIN 939 / GB/T 901
M364.028054Cl. 8.8 alloy steelDIN 939 / GB/T 901

Frequently Asked Questions

Can A2 Stainless Steel Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093) be used with aluminum?

Yes, but stainless drives mild galvanic corrosion of aluminum in wet service — isolate with a coating, sleeve or paint, or accept the trade-off if the joint is dry and indoor.

What's the service temperature limit for A2 Stainless Steel?

The practical service range is approx. -200 °C to +400 °C.

Can A2 Stainless Steel replace plated alloy steel structurally?

Only at the standard strength classes — A2-70 / A4-80 are roughly equivalent to class 7 steel; A4-100 reaches class 8.8. For class 10.9 or 12.9 strength, plated alloy steel is required.

Are A2 Stainless Steel Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093) magnetic?

A2 Stainless Steel Equal-End Stud Bolt — GB/T 901 / DIN 939 (Series 093) are largely non-magnetic.

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.