SS304+SUS410 Bi-metal Hex Flange Head Self Drilling Screw
Product Description
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.