ISO 14585 ST4.8×25 6-Lobe Pan Tapping Screw5 combinations of material, property class and finish supplied in this size.
- Standard
- ISO 14585 · 2011
- Thread
- ST4.8 · pitch 1.6 mm
- Length under head
- 25 mm · 24.2–25.8 mm to ISO 14585 product grade A
- Head height
- 3.7 mm
- Weight
- 4.91 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering204 pieces per kg
- Also named
- GB/T 2670.1
Supplied to ISO 14585 ST4.8×25 — the figures shown here match GB/T 2670.1. All 2 record the same figures in this size. Compared on the columns shown here only — product grade, tolerance class, length range, material and property-class references are set by each standard separately. We produce to whichever one your drawing calls out. Compare all sizes →
Order ST4.8×25
Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.
Every standard listed here records the same figures at ST4.8×25. Your choice is carried into the inquiry and the quotation.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Carbon Steel | — | Plain | — | |
| Carbon Steel | — | Zinc Plated | — | |
| Carbon Steel | — | Dacromet | — | |
| Stainless Steel | — | Passivated | — | |
| Stainless Steel | — | Plain | — |
Dimensions at ST4.8×25
one row per dimension| Dimension | ISO 14585Current | GB/T 2670.1Current |
|---|---|---|
| Thread PitchP (mm) | 1.6 | 1.6 |
| Thread Runout (max)a (mm) | 1.6 | 1.6 |
| Underhead Diameter (max)da (mm) | 5.6 | 5.6 |
| Head Diameterdk (mm) | 9.5 | 9.5 |
| Head Diameter (min)dk min (mm) | 9.14 | 9.14 |
| Nominal Head Heightk (mm) | 3.7 | 3.7 |
| Head Height (min)k (mm) | 3.4 | 3.4 |
| Radius (min)r (mm) | 0.2 | 0.2 |
| Head Radius (ref.)rf (mm) | 8 | 8 |
| Socket NumberTX | 25 | 25 |
| Type Z / Socket Width (ref.)m/A (mm) | 4.5 | 4.5 |
| Socket Depth (max)t (mm) | 2.03 | 2.03 |
| Socket Depth (min)t (mm) | 1.65 | 1.65 |
| Point Length — C (ref.)y (mm) | 4.3 | 4.3 |
| Point Length — F (ref.)y (mm) | 3.2 | 3.2 |
| Point Length — R (ref.)y (mm) | 3.6 | 3.6 |
Plating adds thickness — state the finish on the order.
Other lengths in ST4.8
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| ST4.8×16 | 3.72 | open |
| ST4.8×25 | 4.91 | this page |
| ST4.8×45 | 7.55 | open |
| ST4.8×50 | 8.21 | open |
StandardsISO 14585GB/T 2670.1All sizes