DRILLING: Drill according to the indicated diameters

COUNTERSINK It is always preferable to countersink the entrance of the hole to a depth equal to about once the pitch of the external thread of the insert. Countersink is essential on plastic materials, especially stratified ones, to prevent the upper layer from lifting.

• Light alloys and plastic materials: 60° countersink
• Hard and brittle plastic materials: counterbore with diameter D1=D+0,2-4 mm

INSTALL METHOD Semi-automatic: use a tap

By hand: Fix the tool to a tap wrench and proceed as for normal hand threading

With makeshift means: through a screw and a nut

Self-tapping threaded inserts PDF