Contracting underhead thread. Precise positioning. For gap-free mounting. For all Queenply thicknesses.
With a length of 40 mm, these partially threaded screws are not only the longest screws in our online store, but are also equipped with a center drill point. This allows you to drill precisely and very cleanly even on harder surfaces. Thanks to the pointed centering mandrel, the screw will not slip. The threaded start of the screws allows you to screw quite quickly afterwards.
Due to the contracting underhead thread, you can use these screws wherever you need a quick and gap-free tightening of wood-wood connections. Due to the nature and arrangement of the individual threads, the wooden elements to be screwed together are pulled together extremely strongly. And it holds properly.
Due to the underhead thread with low thread pitch and enlarged outer diameter located below the screw head and thanks to the cupped milling elements in the tip, this connection also works without gaps.
These screws are suitable for all our Queenply thicknesses and surfaces. You can find more technical information under “Technical Details”.
With this galvanized steel screws you can screw wood-wood connections gap-free and extremely tight.
Here are a few more details for you:
- Nominal diameter (d): 3.5 mm
- Length (l): 40 mm
- Thread length (lg): 20 mm
- Thread length with drill point (b): 23.5 mm
- Head shape: countersunk head
- Head details: Milling ribs
- Head diameter (dh): 7 mm
- Head height (k): 2.9 mm
- Internal drive: RW20
- Thread type: Wood screw thread
- Thread type: Partial thread with bottom head thread
- Shank length: 6 mm
- Design: with shank
- Thread form: coarse thread
- Core diameter: 2.1 mm
- Point shape: drill point
- Material: hardened steel
- Surface: galvanized
- Screw-in angle max.: 90 degrees
- Screw-in angle min.: 0 degree
- Product weight (per piece): 1.818 g
- Approval: ETA-11/0190
- RoHS compliant: Yes
You get the screws in a set of 500 pieces.
Before you start further processing and finishing work on our lightweight panels, please make sure that you have adequate protective measures in place, such as wearing safety goggles and, if necessary, a face mask. For drilling or sawing work, it is advisable to additionally wear hearing protection.
Especially with our coated panel materials, the ambient temperature is important during processing. Therefore, make sure that the room temperature is comfortable when you start.
For more information on the screws, please visit the manufacturer's website, as well.