A2 Stainless Steel Split Cotter Pin — ISO / DIN (Series 102) pairs the standard ISO / DIN with a A2 Stainless Steel base material. The sections below cover why engineers select this grade for split cotter pin — iso / din (series 102), its corrosion and temperature behavior, and the sizes available.
Why Choose A2 Stainless Steel for Split Cotter Pin — ISO / DIN (Series 102)
The most common stainless grade for indoor and general outdoor fasteners. For split cotter pin — iso / din (series 102), 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 |
Galvanic & Galling Considerations
Two important notes for stainless split cotter pin — iso / din (series 102): (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.
Comparable Grades
For Split Cotter Pin — ISO / DIN (Series 102), the alternative stainless grade is A4 (316). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Split Cotter Pin — ISO / DIN (Series 102) Available in A2 Stainless Steel
| Nominal diameter (mm) | Length L (mm) | Material | Reference standard |
|---|---|---|---|
| 1.0 | 16 | Carbon steel | ISO 1234 / GB/T 91 |
| 1.2 | 20 | Carbon steel | ISO 1234 / GB/T 91 |
| 1.6 | 25 | Carbon steel | ISO 1234 / GB/T 91 |
| 2.0 | 32 | Carbon steel | ISO 1234 / GB/T 91 |
| 2.5 | 40 | Carbon steel | ISO 1234 / GB/T 91 |
| 3.2 | 50 | Carbon steel | ISO 1234 / GB/T 91 |
| 4.0 | 63 | Carbon steel | ISO 1234 / GB/T 91 |
| 5.0 | 80 | Carbon steel | ISO 1234 / GB/T 91 |
| 6.3 | 100 | Carbon steel | ISO 1234 / GB/T 91 |
| 8.0 | 125 | Carbon steel | ISO 1234 / GB/T 91 |