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Black Oxide Gr10.9 Din7991 Hexagon Socket Countersunk Head Cap Screws Hex Socket Machine Screw
Material: Alloy steel
Grade: Gr10.9
Finish: Black
Standard: DIN7991
Certification: ISO9001
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
Product Description
Key Features
Specifications
Performance Benefits
The DIN 7991 Black Oxide CSK Hex Socket Machine Screw is engineered for critical applications that require a high level of reliability and durability. It offers robust performance with its black oxide finish, which provides additional corrosion resistance and improved torque retention.
| Standard: | DIN7991 |
| Size: | M3-M24 |
| Material: | Alloy steel |
| Grade: | 10.9 |
| 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; |
| DIN7991 | |||||||
| Screw Thread d | Pitch P | k/max | s | dk | |||
| max | min | actual | theor | ||||
| 12.9 | other | min | max | ||||
| M3 | 0.5 | 1.86 | 2.045 | 2.060 | 2.020 | 5.545 | 6.72 |
| M4 | 0.7 | 2.48 | 2.560 | 2.580 | 2.520 | 7.53 | 8.96 |
| M5 | 0.8 | 3.10 | 3.071 | 3.080 | 3.020 | 9.43 | 11.20 |
| M6 | 1 | 3.72 | 4.084 | 4.095 | 4.020 | 11.34 | 13.44 |
| M8 | 1.25 | 4.96 | 5.084 | 5.140 | 5.020 | 15.24 | 17.92 |
| M10 | 1.5 | 6.20 | 6.095 | 6.140 | 6.020 | 19.22 | 22.40 |
| M12 | 1.75 | 7.44 | 8.115 | 8.175 | 8.025 | 23.12 | 26.88 |
| M14 | 2 | 8.40 | 10.115 | 10.175 | 10.025 | 26.52 | 30.80 |
| M16 | 2 | 8.80 | 10.115 | 10.175 | 10.025 | 29.01 | 33.60 |
| M20 | 2.5 | 10.16 | 12.142 | 12.212 | 12.032 | 36.05 | 40.32 |
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Material: Premium carbon steel with a black oxide coating for superior strength and resistance to environmental factors.
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Drive Type: Hex socket drive for compatibility with common hex keys and power tools, ensuring efficient installation and removal.
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Finish: Black oxide coating enhances corrosion resistance and reduces the risk of galling during installation.
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Size Range: Available in a variety of diameters and lengths to accommodate different assembly requirements.
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Thread Type: Metric threading designed to DIN standards for universal compatibility.
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Head Style: Hexagonal head with a black oxide finish, providing a secure and stable connection.
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High Tensile Strength: Designed to withstand high stress and resist deformation under load.
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Corrosion Resistance: The black oxide coating provides excellent resistance to corrosion, making it suitable for outdoor and harsh environments.
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Reliable Fastening: The hex socket design allows for precise torque application, ensuring secure and consistent fastening.
