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DIN,AMSI
GS
GSSDS003
Hex Flange 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
| Nominal diameter | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| d | |||||||
| P | Screw pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| a | Max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| c | Min | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 |
| dc | Max | 6.3 | 8.3 | 8.8 | 10.5 | 11 | 13.5 |
| Min | 5.8 | 7.6 | 8.1 | 9.8 | 10 | 12.2 | |
| e | Min | 4.28 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 |
| k | Max=Nominal | 2.8 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
| Min | 2.5 | 3 | 3.6 | 3.8 | 4.8 | 5.3 | |
| kw | Min | 1.3 | 1.5 | 1.8 | 2.2 | 2.7 | 3.1 |
| r | Min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 |
| s | Max=Nominal | 4 | 5.5 | 7 | 8 | 8 | 10 |
| Min | 3.82 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | |
| Drilling depth or sheet metal thickness | Min | 0.7 | 0.7 | 1.75 | 1.75 | 1.75 | 2 |
| Min | 1.9 | 2.25 | 3 | 4.4 | 5.25 | 6 | |
| Lg Min | - | - | - | - | - | - |
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 ≤200 |
| 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 |
Standard export packing or According to customer's requirement
1. What is your main products?
A: Fasteners, Bolt, nut, screws, washer, threaded rod, anchors, self-tapping
Screws, self-drilling screws, stainless steel plate, etc.
2. What is your delivery time?
A: It depends on if we have stock or not, if we have stock goods, we can
delivery within 2 days after receive the payment. And normally our production
is in 20-30 days for one container (20-26 ton) products.
3. What is your payment term?
A: Mostly we use 30% advance payment by T/T, 70% before shipment
For small amount order, we have PayPal account, also the western union,
MoneyGram is ok.
4. How is your quality? And what if we don't satisfied your quality?
A: We produce your order strictly by your request. If the quality was not
acceptable, we will refund to you.
