A2 Stainless Steel Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) pairs the standard GB/T 120.1 / ISO 8735 with a A2 Stainless Steel base material. The sections below cover why engineers select this grade for internally threaded dowel pin — gb/t 120.1 / iso 8735 (series 100), its corrosion and temperature behavior, and the sizes available.
Why Choose A2 Stainless Steel for Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100)
The most common stainless grade for indoor and general outdoor fasteners. For internally threaded dowel pin — gb/t 120.1 / iso 8735 (series 100), this matters when good general corrosion resistance is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A2-70 (304) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Good general corrosion resistance |
Corrosion Behavior in Service
A2 (304) gives excellent atmospheric and most-water corrosion resistance and is the most common stainless for Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) 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 internally threaded dowel pin — gb/t 120.1 / iso 8735 (series 100): (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 Internally Threaded Dowel Pin — GB/T 120.1 / ISO 8735 (Series 100) Available in A2 Stainless Steel
| Nominal diameter d (mm) | Length L (mm) | Internal thread | Material | Reference standard |
|---|---|---|---|---|
| 4 | 16 | M3 | Alloy steel | ISO 8736 / GB/T 120 |
| 5 | 20 | M4 | Alloy steel | ISO 8736 / GB/T 120 |
| 6 | 24 | M4 | Alloy steel | ISO 8736 / GB/T 120 |
| 8 | 30 | M5 | Alloy steel | ISO 8736 / GB/T 120 |
| 10 | 40 | M6 | Alloy steel | ISO 8736 / GB/T 120 |
| 12 | 50 | M8 | Alloy steel | ISO 8736 / GB/T 120 |
| 16 | 60 | M10 | Alloy steel | ISO 8736 / GB/T 120 |
| 20 | 80 | M12 | Alloy steel | ISO 8736 / GB/T 120 |
