Product Specifications
| Model / Specification | M1.4 – M24 |
| Material | Aluminum Alloy |
| Thread Size d |
M1.4 | M1.6 | (M1.8) | M2 | M2.5 | M3 | M4 | M5 | M6 | ||
| P | Pitch | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | |
| dz | Max. | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 2 | 2.5 | 3 | |
| Min. | 0.45 | 0.55 | 0.65 | 0.75 | 0.95 | 1.15 | 1.75 | 2.25 | 2.75 | ||
| s | Nominal | 0.7 | 0.7 | 0.7 | 0.9 | 1.3 | 1.5 | 2 | 2.5 | 3 | |
| Max. | 0.724 | 0.724 | 0.724 | 0.902 | 1.295 | 1.545 | 2.045 | 2.56 | 3.08 | ||
| Min. | 0.711 | 0.711 | 0.711 | 0.889 | 1.27 | 1.52 | 2.02 | 2.52 | 3.02 | ||
| t | Min. | Short Screw | 0.6 | 0.7 | 0.8 | 0.8 | 1.2 | 1.2 | 1.5 | 2 | 2 |
| Long Screw | 1.4 | 1.5 | 1.6 | 1.7 | 2 | 2 | 2.5 | 3 | 3.5 | ||
| e | Min. | 0.803 | 0.803 | 0.803 | 1.003 | 1.427 | 1.73 | 2.30 | 2.87 | 3.44 | |
| Weight 1000 pcs (steel) ≈ kg | - | - | - | - | - | - | - | - | - | ||
| Thread Size d |
M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | ||
| P | Pitch | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | |
| dz | Max. | 5 | 6 | 8 | 9 | 10 | 12 | 14 | 16 | 16 | |
| Min. | 4.7 | 5.7 | 7.64 | 8.64 | 9.64 | 11.57 | 13.57 | 15.57 | 15.57 | ||
| s | Nominal | 4 | 5 | 6 | 6 | 8 | 10 | 10 | 12 | 12 | |
| Max. | 4.095 | 5.095 | 6.095 | 6.095 | 8.115 | 10.115 | 10.115 | 12.142 | 12.142 | ||
| Min. | 4.02 | 5.02 | 6.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 | ||
| t | Min. | Short Screw | 3 | 4 | 4.8 | 5.6 | 6.4 | 7.2 | 8 | 9 | 10 |
| Long Screw | 5 | 6 | 8 | 9 | 10 | 11 | 12 | 13.5 | 15 | ||
| e | Min. | 4.58 | 5.72 | 6.86 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 | |
| Weight 1000 pcs (steel) ≈ kg | - | - | - | - | - | - | - | - | - | ||
DIN916(K) Aluminum Alloy Cup Point Knurled Set Screw — Product Introduction
The DIN916(K) aluminum alloy cup point knurled set screw is a high-strength fastener conforming to the German industrial standard DIN916. This product is manufactured from high-quality aluminum alloy material, undergoes precision forging and knurling processes, and features a cup point design, specifically engineered for mechanical assembly applications requiring lightweight construction and high fastening force. The product is widely applicable in fields such as electronic equipment, precision instruments, aerospace, and high-end consumer machinery.
I. Product Features
Cup Point Design: The recessed internal structure at the tip enables use with corresponding wrench tools, making fastening more effortless, and ensures the screw does not easily loosen after being locked in place.
Knurling Process: The screw shaft surface undergoes knurling treatment, which increases friction force, facilitates manual or tool-driven rotation, and makes operation more convenient.
Aluminum Alloy Material: High-strength aluminum alloy (such as 7075) is selected, featuring low density and light weight, suitable for equipment with strict self-weight requirements.
Precision Threading: Thread precision conforms to DIN916 standard, providing smooth engagement, accurate installation positioning, and maintaining good locking performance even after repeated assembly and disassembly.
II. Product Advantages
Lightweight: Aluminum alloy material reduces weight by approximately one-third compared to carbon steel and stainless steel, significantly lowering the overall weight of equipment.
Strong Corrosion Resistance: Aluminum alloy surface can form a dense oxide film, providing good oxidation resistance and corrosion resistance, suitable for various working environments.
Easy Installation: Knurled surface increases friction force, allowing for both manual tightening and tool operation, adapting to different installation conditions.
Dimensional Stability: Precision machining processes ensure excellent dimensional consistency of the product, suitable for high-volume assembly applications.
III. Scope of Application
Electronic Equipment: Such as laptop enclosures, smartphone middle frames, and precision circuit board fastening.
Precision Instruments: Fastening connections for optical equipment, measuring instruments, and laboratory apparatus.
Aerospace: Aircraft interiors, drone bodies, and other components with stringent lightweight requirements.
Consumer Machinery: High-end bicycles, power tools, home appliances, and other product assemblies.
Medical Devices: Portable medical equipment, rehabilitation devices, and other scenarios requiring both lightweight construction and reliability.