Specifying Clevis Pin — ISO / DIN (Series 101) in Grade 8.8 Steel pairs the dimensional form of Clevis Pin — ISO / DIN (Series 101) (ISO / DIN) with the engineering properties of Grade 8.8 Steel. This page explains when to choose the grade, how it behaves in service, and which grades to compare it against.
Why Choose Grade 8.8 Steel for Clevis Pin — ISO / DIN (Series 101)
The workhorse medium-carbon alloy grade for structural joints. For clevis pin — iso / din (series 101), this matters when requires plating (zinc) for corrosion protection is the primary requirement.
Mechanical & Physical Properties
| Grade designation | class 8.8 |
|---|---|
| Magnetic response | Magnetic |
| Service temperature | up to approx. +300 °C |
| Corrosion characteristic | Requires plating (zinc) for corrosion protection |
Corrosion Behavior in Service
Carbon and alloy steel clevis pin — iso / din (series 101) require a coating for corrosion protection. Zinc plating (with or without passivation) is the most common; hot-dip galvanizing is used for outdoor structural service; black-oxide is mainly a tarnish-prevention finish for tool-room use.
Comparable Grades
For Clevis Pin — ISO / DIN (Series 101), class 10.9 or 12.9 is the comparable strength step. Move up when the joint preload approaches the proof load of the current class; move down when the joint is over-specified. For corrosion-critical service, switch to stainless A2 or A4.
Sizes of Clevis Pin — ISO / DIN (Series 101) Available in Grade 8.8 Steel
| Nominal diameter (mm) | Length L (mm) | Head diameter (mm) | Cotter pin hole (mm) | Material | Reference standard |
|---|---|---|---|---|---|
| 3 | 16 | 5 | 1.0 | Carbon steel | ISO 2341 / GB/T 882 |
| 4 | 20 | 7 | 1.2 | Carbon steel | ISO 2341 / GB/T 882 |
| 5 | 25 | 8 | 1.6 | Carbon steel | ISO 2341 / GB/T 882 |
| 6 | 32 | 10 | 1.6 | Carbon steel | ISO 2341 / GB/T 882 |
| 8 | 40 | 12 | 2.0 | Carbon steel | ISO 2341 / GB/T 882 |
| 10 | 50 | 15 | 2.5 | Carbon steel | ISO 2341 / GB/T 882 |
| 12 | 63 | 18 | 3.2 | Carbon steel | ISO 2341 / GB/T 882 |
| 16 | 80 | 22 | 4.0 | Carbon steel | ISO 2341 / GB/T 882 |
| 20 | 100 | 28 | 4.0 | Carbon steel | ISO 2341 / GB/T 882 |