Counter Sunk Allen Socket Head Screws - Din 7991 (Grade 10.9) (Black) | 550 PCS Large Box
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Counter Sunk Allen Socket Head Screws - Din 7991 (Grade 10.9) (Black) | 550 PCS Large Box
Part No: AAK110
Standard: DIN 7991
Material Grade: High-Tensile Steel – Grade 10.9
Finish: Black Oxide
Head Type: Flat Head / Countersunk Socket (Hex Drive)
The AAK110 Counter Sunk Allen Socket Head Screws are engineered to DIN 7991 standards and manufactured from high-strength Grade 10.9 alloy steel, offering optimal tensile performance for demanding mechanical, structural, and automotive applications.
Featuring a flat head profile that sits flush with the surface once installed, these screws are ideal for applications requiring a sleek finish or where protruding fasteners are not acceptable.
The black oxide finish enhances resistance to corrosion while giving the screws a clean, professional appearance.
📦 Kit Contents: 550 PCS TOTAL
| Size (Metric) | Quantity |
|---|---|
| M4×12 | 50 pcs |
| M4×16 | 50 pcs |
| M4×20 | 50 pcs |
| M5×12 | 50 pcs |
| M5×16 | 50 pcs |
| M5×20 | 30 pcs |
| M5×25 | 30 pcs |
| M5×30 | 30 pcs |
| M6×12 | 30 pcs |
| M6×16 | 30 pcs |
| M6×20 | 20 pcs |
| M6×25 | 20 pcs |
| M6×30 | 25 pcs |
| M8×16 | 20 pcs |
| M8×20 | 20 pcs |
| M8×25 | 20 pcs |
| M8×30 | 15 pcs |
| M8×40 | 10 pcs |
✅ Key Features:
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DIN 7991 Countersunk Head – Flush surface fit, ideal for clean finishes
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Grade 10.9 Steel – High tensile strength for heavy-duty applications
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Hex Socket Drive – Provides superior torque control and reduced risk of slippage
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Black Oxide Coating – Enhanced corrosion resistance and aesthetic appeal
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Precision Machining – Ensures tight fit and long service life
🛠️ Common Applications:
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Automotive assemblies and chassis components
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Machinery and equipment mounting
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Aerospace and engineering projects
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Structural steel fastening
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Electronics and robotics installations
