Product Description:
DIN968 Standard Self Tapping Screws
The DIN968 standard is a cross groove pan head self tapping screw
standard that was developed by the German Institute for
Standardization (DIN). These screws are commonly used for fastening
connections of metal sheets and non-metallic materials.The groove
type of DIN968 standard self tapping screws is cross groove, which
can be either H-type or Z-type. The tail of these screws can be
either pointed tail (C-type) or flat tail (F-type), making them
suitable for self tapping hard materials.When it comes to head
design, the DIN968 screws feature a Pan Head structure with
gaskets. These screws come in various diameter specifications,
ranging from ST2.9 to ST6.3.
Features:
Self-Tapping Screws Overview
DIN968 self-tapping screws are commonly crafted from two main
materials: carbon steel (with galvanized or nickel surface
finishes) and stainless steel, specifically SUS304 for corrosion
resistance. The carbon steel variant typically boasts a tensile
strength of at least 400MPa, while stainless steel of grade A2-70
must meet or exceed a strength of 700MPa. In terms of technical
specifications, the international equivalent standard aligns with
the ISO 7049 guidelines.
Technical Parameters:
Thread Size
d | ST2.9 | ST3.5 | ST4.2 | ST4.8 | (ST5.5) | ST6.3 |
| P | Pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| a | max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| dk | max=nominal size | 7.5 | 9 | 10 | 11.5 | 13 | 14.5 |
| min | 6.92 | 8.42 | 9.42 | 10.8 | 12.3 | 13.8 |
| k | max=nominal size | 2.35 | 2.6 | 3.05 | 3.55 | 3.8 | 4.55 |
| min | 2.1 | 2.35 | 2.75 | 3.25 | 3.5 | 4.25 |
| c | max | 0.8 | 0.9 | 1.1 | 1.35 | 1.6 | 1.8 |
| min | 0.6 | 0.7 | 0.9 | 1.05 | 1.2 | 1.4 |
| r | min | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 |
| R | ≈ | 3.8 | 4.6 | 5.8 | 6.6 | 7.8 | 8.2 |
| Socket No. | 1 | 2 | 2 | 2 | 3 | 3 |
| M1 | From H | Ref. | 3 | 4.2 | 4.6 | 5 | 6.5 | 7.1 |
| Penetration depth | From H | min | 1.35 | 1.4 | 1.8 | 2.26 | 2.49 | 3 |
| max | 1.8 | 2.03 | 2.46 | 2.87 | 3.15 | 3.66 |
| M2 | From Z | Ref. | 2.9 | 3.9 | 4.3 | 4.7 | 6.2 | 6.7 |
| Penetration depth | From Z | min | 1.58 | 1.47 | 1.88 | 2.28 | 2.51 | 3.02 |
| max | 1.83 | 1.93 | 2.34 | 2.74 | 2.97 | 3.48 |
| y | Ref. | Type C | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 |
| Type F | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 |
| Type R | / | 2.7 | 3.2 | 3.6 | 4.3 | 5 |
Applications:
DIN968 self tapping screws are widely utilized in various
applications such as electrical enclosures, building curtain walls,
medical devices, and more. They are specifically designed for
light-duty connections and are well-suited for lightweight
structures. The built-in pad design of these screws contributes to
improved force uniformity, making them ideal for applications with
anti-loosening requirements, especially with thin plates.
Company Certificate:
Packaging:
 |  |  |
| 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. |
