Property Class 8.8 Steel Soft-Tip Set Screws (Nylon and Brass) are supplied to our own published dimensions — this is a trade-series article rather than one covered by a dimensional standard, so confirm the figures against the part you are replacing. The grade provides requires plating (zinc) for corrosion protection and is magnetic; the practical service range is commonly limited to approx. +300 °C; confirm against the coating and the load.
Why Choose Property Class 8.8 Steel for Soft-Tip Set Screws (Nylon and Brass)
The workhorse medium-carbon alloy class for structural joints. For soft-tip set screws (nylon and brass), this matters when requires plating (zinc) for corrosion protection is the primary requirement.
Mechanical & Physical Properties
| Grade designation | ISO 898-1 property class 8.8 |
|---|---|
| Magnetic response | Magnetic |
| Service temperature | commonly limited to approx. +300 °C; confirm against the coating and the load |
| Corrosion characteristic | Requires plating (zinc) for corrosion protection |
Galvanic & Galling Considerations
For soft-tip set screws (nylon and brass) in steel, the dominant compatibility issue is hydrogen embrittlement at high property classes (10.9 and above) when electroplated. Plating must be followed by an appropriate baking treatment, or a non-electroplated finish (mechanical zinc, zinc flake) should be substituted.
Comparable Grades
For Soft-Tip Set Screws (Nylon and Brass), 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 Soft-Tip Set Screws (Nylon and Brass) Available in Property Class 8.8 Steel
| Thread size | Tip length (mm) | Holding force vs steel point | Max temperature (°C) | Drive | Common length range (mm) | Marks the shaft |
|---|---|---|---|---|---|---|
| M4 | 2.0 | approx. 40% | 100 | Hex socket | 6~20 | No |
| M5 | 2.5 | approx. 40% | 100 | Hex socket | 6~25 | No |
| M6 | 3.0 | approx. 40% | 100 | Hex socket | 8~30 | No |
| M6 | 3.0 | approx. 70% | 250 | Hex socket | 8~30 | No |
| M8 | 4.0 | approx. 70% | 250 | Hex socket | 10~40 | No |
| M10 | 5.0 | approx. 70% | 250 | Hex socket | 12~50 | No |
Dimensions are independent of the material: the table above lists the sizes supplied, and on this page every one of them is quoted in Property Class 8.8 Steel. The catalogue's default material column has been omitted here so it cannot be read as contradicting that.
Custom manufacturing · Made to drawing
Need this screw in a grade that is not listed?
Grade 8 8 Steel is one of the grades the catalog describes. Where the standard stops, the drawing takes over: fine pitches, left-hand threads, partial threading, and property classes above the catalogued grade where material and heat treatment allow. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
