Chinese wholesale Flat Head Self Drilling Screws - self drilling screw with wings – DaHe

For assembling wood on metal, a hole in the wood is required with some space to avoid threading, the wood before the drill in the strip is finished, The Self-Drilling point drills steel whilst the wing tips create a pilot hole braking off when passing through the steel,Otherwise the drill tip could be burned, the wood,broken or the fixing wood-strip unglued.

Application

1:Both wings avoid the wood to be damaged by drilling a pilot hole.
With ribs under the head that countersunk the wood straight away, also melamine and other
materials.
2:Fine Thread Self-Drilling Countersunk Winged Screws are suitable for timber, fibre cement and chipboard to metal where a flush finish is required.

Feature

1: Self Drilling Screws with wings
2:Drills the wood.
3:Wood ream + metal drill.
4:Threads in the metal plate
5:After threading the ribbed underside of the screw head self-embeds for a flush or recessed finish, driving out any loose particles when countersinking.

Take these precautions

1:Drill previously a hole bigger than thread’s diameter.
2:Use an extra-large self drilling screw (non commercial).
3:Use a self drilling screw with two wings: the reamer created on the wood has a bigger diameter than thread so that this does not touch the wood. Wings and thread will break in contact with metal.

If you have a question, require a unique solution or are looking for a fastener that is not listed, please contact us with your requirements.

Specification

NOTE:
1: Drill Capacity: 8g (0.75-2.5mm of steel), 10g (0.75-3.5mm of steel)
2:Driver Type: Philips P2
3:Installation Speed:  2300-2500 RPM Max Drill Speed