NINGBO YONGBIAO FASTENER CO.,LTD
NINGBO YONGBIAO FASTENER CO.,LTD
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DIN968 is a standard for cross-groove pan head self-tapping screws established by the German Institute for Standardization (DIN). This standard is commonly utilized for securing connections between metal sheets and non-metallic materials.
The groove type of DIN968 self-tapping screws conforms to the cross-groove design, with options such as H-type or Z-type. The screw can have a pointed tail (C-type) or a flat tail (F-type), making it suitable for tapping into hard materials. The head of the screw is crafted as a Pan Head structure featuring gaskets, and it comes in diameter specifications ranging from ST2.9 to ST6.3.
DIN968 self-tapping screws are commonly manufactured using carbon steel (with a surface that may be galvanized or nickel-plated) and stainless steel (specifically SUS304 for corrosion resistance). The carbon steel variation typically belongs to grade 8.8 and boasts a minimum tensile strength of 400MPa, while the stainless steel variant of grade A2-70 must exhibit a strength of at least 700MPa.
The technical specifications of DIN968 self-tapping screws align with the international standard ISO 7049, ensuring consistency and compatibility in terms of their design and performance characteristics.
| Screw Thread d | ST2.2 | ST2.9 | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||
| P | Pitch | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| a | max | 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| dk | max=nominal size | 4.2 | 5.6 | 6.9 | 7.5 | 8.2 | 9.5 | 10.8 | 12.5 | |
| min | 3.9 | 5.3 | 6.54 | 7.14 | 7.84 | 9.14 | 10.37 | 12.07 | ||
| k | max=nominal size | 1.8 | 2.2 | 2.6 | 2.8 | 3.05 | 3.55 | 3.95 | 4.55 | |
| min | 1.55 | 1.95 | 2.35 | 2.55 | 2.75 | 3.25 | 3.65 | 4.25 | ||
| y | max | Type C | 2 | 2.6 | 3.2 | 3.5 | 3.7 | 4.3 | 5 | 6 |
| Type F | 1.6 | 2.1 | 2.5 | 2.7 | 2.8 | 3.2 | 3.6 | 3.6 | ||
| Socket No. | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | ||
| M1 | ≈ | 2.6 | 3 | 4.2 | 4.4 | 4.6 | 5 | 6.5 | 7.1 | |
| M2 | ≈ | 2.4 | 2.9 | 3.9 | 4.1 | 4.3 | 4.7 | 6.2 | 6.7 | |
In various applications such as electrical enclosures, building curtain walls, medical devices, and more, DIN968 self-tapping screws are frequently utilized for light-duty connections. These self-tapping screws feature a built-in pad design that improves force distribution and is well-suited for preventing loosening in thin plates.
The DIN968 self-tapping screws are popular for their ability to provide secure connections in a variety of settings. Their unique pad design ensures that forces are evenly distributed, making them ideal for meeting the anti-loosening needs of thin plates in different industries.
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| Carton Packaging | Outer Cartonbox Packaging | Pallet Packaging |
| Bolts are packed in neutral packaging boxes, with standard quantities arranged in small cartons. The exact number of units per carton will be confirmed with the customer to align with their specific requirements. Customized packaging configurations are available upon request. | The small cartons are then consolidated into larger master cartons for secure transportation and storage. The quantity per master carton can be customized based on client specifications or aligned with standard logistical requirements. | The palletized units are securely wrapped with waterproof film and reinforced with packaging straps. Customer-specific shipping marks or labels are affixed to each pallet, ensuring clear identification and compliance with logistics requirements. This final packaging stage guarantees weather-resistant protection and stability during transportation. |