Deltafix nut screw-in insert for wood galvanised m8 x l 15 x 12mm 100 pcs

A screw-on nut or rampa drill has a thread on both the inside. The thread on the inside is intended to turn a bolt. The thread on the outside has a sharp winding with a coarse urgency. Due to the outer thread, the screw -on nut can easily be turned in wood after pre -drilling a hole. You do this with a screwdriver that fits exactly in the slot at the end of the screw -on nut. The outer thread ensures that the nut cuts in the sides of the hole and anchors itself there. As soon as the nut is tight, the bolt can be turned in. The screw -on nut is ideal for a bolt connection in wood and soft (er) materials, such as chipboard and plastic.