PRODUCT
Material: Carbon steel
Finish: black oxide
Standard: ISO14581
Certification: ISO9001
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
Black Oxide Hex Socket Head Self Tapping Screw
Description:
| Standard: |
ISO14581 |
| Size: | ST2.9-6.3 |
| Material: | Stainless steel |
| Grade: | A2-70 A4-80 |
| Thread: | Metric |
| Finish: | Plain,Nickel, Chrome |
| Packing: | Box+Cartons+wood Pallet or according to customer special demand |
| Application: | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating |
| Trade Term: | FOB/CIF/CFR/CNF/EXW/DDU/DDP |
| Payment | T/T, L/C |
| Market: | South&north Amrica/Europe/East&South east Asia/ Australia and ect. |
| Our advantage: | One-stop shopping; |
| High quality; | |
| Competitive price; | |
| Timely delivery; | |
| Technical support; | |
| Supply Material and Test Reports; |
| 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 |
Standard export packing or According to customer's requirement
Q:What is your main products?
A:Fasteners, Bolt, nut, screws, washer, threaded rod, anchors, self tapping screws, self driling screws, stainless steel plate, etc.
Q: 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.
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Material: C1022 carbon steel, 0.18–0.23 % C, 0.70–1.00 % Mn; core hardness 320–380 HV, case 450–520 HV.
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Head: Hexagonal (external) with straight-slotted top—use spanner for speed, flat-blade for field service.
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Drive: External hex + slotted combo—no special bit required; ideal for maintenance crews.
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Thread: Type AB (spaced) or Type C (plastic/wood) with 45° gimlet point; cuts cleanly in 0.5–2 mm steel, aluminium, plastics or hardwoods.
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Finish: Mid-temp black oxide MIL-DTL-13924, oil sealed; 24 h neutral salt-spray to red rust; non-reflective, perfect for camera rigs, firearms, electronics.
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Temperature Range: –40 °C to +150 °C; re-oil if used above 100 °C.
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Re-usable: Threads stay intact after 15+ removal cycles.
Diameter: ST2.9 – ST6.3 (#4 – #14) / M3 – M6
Length: 6 mm – 80 mm (1/4" – 3-1/4")
Hex Width: 5.5 mm – 10 mm (matched to diameter)
Standard: DIN 7976 / ISO 1479 hex-head self-tapping variant.
ISO 9001 & IATF 16949 certified plant, in-house black-oxide line, 3-day lead time, free salt-spray & torque reports with every batch, global 5-day express on standard sizes.
