Pan Head Self Drilling Screw
Goshen's stainless steel self drilling screws are made of ss410 ss304 ss316 stainless steel, which has a bright color, less corrosion and a lot of size.Secondly,hex bolt full thread dimensions is also complete.
Specification
| Thread specification | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 |
| d |
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| P | Screw pitch |
| 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| dk | Max |
| 5.6 | 7 | 8 | 9.5 | 11 | 12 |
| Min |
| 5.3 | 6.64 | 7.64 | 9.14 | 10.57 | 11.57 |
| k | Max |
| 2.4 | 2.6 | 3.1 | 3.7 | 4 | 4.6 |
| Min |
| 2.15 | 2.35 | 2.8 | 3.4 | 3.7 | 4.3 |
| Slot number | 1 | 2 | 2 | 2 | 3 | 3 |
| Drilling range (plate thickness) | ≥ |
| 0.7 | 0.7 | 1.75 | 1.75 | 1.75 | 2 |
| ≤ |
| 1.9 | 2.25 | 3 | 4.4 | 5.25 | 6 |
Material
| 304 Chemical Composition(%) |
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | N≤ |
| 0.08 | 2 | 0.75 | 0.03 | 0.045 | 18.0-20.0 | 8.0-10.5 | 0.1 |
| 304 Mechanical property |
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200HB |
| 316 Chemical Composition(%) |
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | Cu | MO | N |
| 0.017 | 0.98 | 0.25 | 0.0016 | 0.0414 | 16.23 | 10.08 | 0.32 | 2.06 | 0.037 |
| 316 Mechanical property |
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200 |
| 410 Chemical Composition(%) |
| Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr |
| 0.15 | 1.00 | 1.00 | 0.035 | 0.030 | 11.50~13.50 |
| 410 Mechanical property |
| σb≥ | σ0.2≥ | δ5 (%)≥ | hb≤
| hrb≤ | hv≤ |
| 440(Mpa) | 205(Mpa) | 20% | 183 | 88 | 200 |