PRODUCT
Material: Carbon steel
Grade: 10.9
Finish: Black
Standard: DIN6921
Certification: ISO9001
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
We also supply hex flange nuts that work in tandem with our hex flange bolts. We have different grades of hex flange bolts, hex flange nuts, and hex flange screws to fit a wide range of applications. Stainless steel is widely used in the fastener industry,which not only looks great but has other benefits too..
| Standard: | DIN6921 |
| Size: | M6-M16 |
| Material: | Carbon steel |
| Grade: | 10.9 |
| Thread: | Metric |
| Finish: | Black |
| Packing: | 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; |
| Gr10.9 Chemical Composition(%) | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu |
| 0.37-0.4 | 0.17-0.37 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.8-1.1 | ≤0.03 | ≤0.03 |
| Mechanical property | |||
| σb≥ | σ0.2≥ | δ5 (%)≥ | ψ≥ |
| 980 | 205(Mpa) | 9% | 45 |
| DIN6921 | ||||||
| Screw Thread d | Pitch P | k | s | |||
| coarse thread | Fine therad-1 | Fine thread-2 | min | max | ||
| M6 | 1 | / | / | 6.6 | 9.78 | 10 |
| M8 | 1.25 | 1 | / | 8.1 | 12.73 | 13 |
| M10 | 1.5 | 1.25 | 1 | 9.2 | 14.73 | 15 |
| M12 | 1.75 | 1.5 | 1.25 | 11.5 | 15.73 | 16 |
| M14 | 2 | 1.5 | / | 12.8 | 17.73 | 18 |
| M16 | 2 | 1.5 | / | 14.4 | 20.67 | 21 |
• Standard: DIN 6921 (hexagon head with integrated flange, metric full thread)
• Sizes: M5–M20; lengths 10–200 mm; coarse pitch 6g, fine pitch or UNC on request
• One-piece flange replaces separate washer, distributing clamp load and protecting mating surface
• Carbon steel, property classes 8.8, 10.9 or 12.9
• Black oxide conversion coating + protective oil film: <1 µm thickness, zero dimensional change, 24–48 h salt-spray resistance
• High tensile strength (800–1 200 MPa) suitable for structural, automotive, machinery and tooling assemblies
• Flange design resists vibration loosening, eliminates need for separate flat washer, reduces assembly time and weight
