ISO 7050 ST5.5×13 Countersunk Tapping Screw7 combinations of material, property class and finish supplied in this size.
- Standard
- ISO 7050 · 2011
- Thread
- ST5.5 · pitch 1.8 mm
- Length under head
- 13 mm · 12.2–13.8 mm to ISO 7050 product grade A
- Head height
- 3 mm
- Weight
- 2.35 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering426 pieces per kg
- Also named
- GB/T 846
Supplied to ISO 7050 ST5.5×13 — the figures shown here match GB/T 846. 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 ST5.5×13
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 ST5.5×13. Your choice is carried into the inquiry and the quotation.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Carbon Steel | — | Zinc Plated | — | |
| Carbon Steel | — | Dacromet | — | |
| Carbon Steel | — | Ruspert | — | |
| Carbon Steel | — | Phosphate | — | |
| Carbon Steel | — | Plain | — | |
| Stainless Steel | — | Plain | — | |
| Stainless Steel | — | Passivated | — |
Dimensions at ST5.5×13
one row per dimension| Dimension | ISO 7050Current | GB/T 846Current |
|---|---|---|
| Thread PitchP (mm) | 1.8 | 1.8 |
| Thread Runout (max)a (mm) | 3.6 | 3.6 |
| Theoretical Head Diameter (max)dk (mm) | 11.5 | 11.5 |
| Head Diameterdk (mm) | 10.3 | 10.3 |
| Head Diameter (min)dk min (mm) | 9.9 | 9.9 |
| Nominal Head Heightk (mm) | 3 | 3 |
| Radius (max)r (mm) | 2.2 | 2.2 |
| Recess Number | 3 | 3 |
| Type H Recess Width (ref.)m (mm) | 6.6 | 6.6 |
| Type H Penetration (max)t (mm) | 3.3 | 3.3 |
| Type H Penetration (min)t (mm) | 2.8 | 2.8 |
| Type Z / Socket Width (ref.)m/A (mm) | 6.3 | 6.3 |
| Type Z Penetration (max)t (mm) | 3.18 | 3.18 |
| Type Z Penetration (min)t (mm) | 2.73 | 2.73 |
| Point Length — C (ref.)y (mm) | 5 | 5 |
| Point Length — F (ref.)y (mm) | 3.6 | 3.6 |
| Point Length — R (ref.)y (mm) | 4.3 | 4.3 |
Plating adds thickness — state the finish on the order.
Other lengths in ST5.5
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| ST5.5×13 | 2.35 | this page |
| ST5.5×16 | 2.69 | open |
| ST5.5×19 | 3.04 | open |
| ST5.5×22 | 3.39 | open |
| ST5.5×25 | 3.73 | open |
ST5.5 x 16ST5.5 x 19ST5.5 x 22ST5.5 x 25ST5.5 x 32ST5.5 x 38
Nearby sizesST4.8 x 38