Drilling - Import export

Hardened to 780 ±40 HV 10 and ground. Without leadin groove. Note All bushes have the bore size marked on the upper face, e.g. 10. Diameters D1 over 15 mm increase in size by 0.5 mm. Dowels or coiled spring pins together with DIN 1731 flathead screws can be used in place of the stop pin.

From diameter D1 over 15 mm size increases are 0.5 mm.

From diameter D1 over 15 mm size increases are 0.5 mm. 1) Chamfer for insert

Metal dowel for hollow structures The main purpose is to attach building materials to bases with low loadbearing capacity, for example: plasterboard, particle board or hollow materials. It is also used when frequent disassembly of the structure is necessary. Installation can be carried out in two ways: using special pliers, using a screwdriver.