ISO 1479 ST2.9×38 Hex Head Tapping Screw4 combinations of material, property class and finish supplied in this size.
- Standard
- ISO 1479 · 2011
- Thread
- ST2.9 · pitch 1.1 mm
- Length under head
- 38 mm · 36.7–39.3 mm to ISO 1479 product grade A
- Drive
- 5 mm spanner · e 5.4 mm
- Head height
- 2.3 mm
- Weight
- 2.19 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering456 pieces per kg
- Also named
- GB/T 5285
Supplied to ISO 1479 ST2.9×38 — the figures shown here match GB/T 5285. 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 ST2.9×38
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 ST2.9×38. Your choice is carried into the inquiry and the quotation.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Carbon Steel | — | Zinc Plated | — | |
| Carbon Steel | — | Dacromet | — | |
| Stainless Steel | — | Passivated | — | |
| Stainless Steel | — | Plain | — |
Dimensions at ST2.9×38
one row per dimension| Dimension | ISO 1479Current | GB/T 5285Current |
|---|---|---|
| Thread PitchP (mm) | 1.1 | 1.1 |
| Thread Runout (max)a (mm) | 1.1 | 1.1 |
| Width Across Flats (max)s (mm) | 5 | 5 |
| Width Across Flats (min)s min (mm) | 4.82 | 4.82 |
| Width Across Corners (min)e (mm) | 5.4 | 5.4 |
| Nominal Head Heightk (mm) | 2.3 | 2.3 |
| Head Height (min)k (mm) | 2 | 2 |
| Radius (min)r (mm) | 0.1 | 0.1 |
| Point Length — C (ref.)y (mm) | 2.6 | 2.6 |
| Point Length — F (ref.)y (mm) | 2.1 | 2.1 |
Plating adds thickness — state the finish on the order.
Other lengths in ST2.9
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| ST2.9×25 | 1.57 | open |
| ST2.9×32 | 1.90 | open |
| ST2.9×38 | 2.19 | this page |
| ST2.9×45 | 2.53 | open |
| ST2.9×50 | 2.77 | open |
ST2.9 x 6.5ST2.9 x 9.5ST2.9 x 13ST2.9 x 16ST2.9 x 19ST2.9 x 22ST2.9 x 25ST2.9 x 32ST2.9 x 45ST2.9 x 50