Adjustable Self-Tapping Screw for Wooden Surfaces (Window and Door Frames)

The adjustable self-tapping screw is used for installing window and door units. The self-drilling tip allows installation without pre-drilled holes. Wooden frames can be fastened around the perimeter of openings in walls made of any material. With wood, the screw works on its own; with concrete, brick or stone, it is used together with a plastic wall plug. The hex-key head is used not only for installation but also for adjustment: the screw is driven further into the channel or backed out of it.

Steel alloys with an increased carbon content are used to manufacture the adjustable self-tapping screw. Corrosion protection is provided by a zinc coating applied by electroplating. Standard length sizes are 70-130 mm, diameter 6.0 mm.

L (mm)	d
	6.0
70
80
90
100
110
120
130

Adjustable Self-Tapping Screw for Wooden Surfaces (Window and Door Frames)