Material:Threaded Inserts

MaterialInfoBox Threaded Inserts
Synonyms:	DE: Einschraubmuttern, Einschraubmuffen, RAMPA-Muffen, Gewindemuffen, Verbundmuttern, DIN 7965
Suggested Tools:	wood drill bits, screwdrivers, countersinks
Used with:	metric screws, wood
Similar (More or Less):	T-nuts

Threaded inserts can give you a metric thread in a piece of wood that is not very visible from the outside. The mounting hole always needs to be pre-drilled and countersunk, then they can be screwed in with an appropriate screwdriver, hex key or - best of all - a metric screw coming perfectly straight from a simple installation jig like this one (Guido Henn/HolzWerken - DE).

Here are some additional tricks for inserting them at a right angle:

• HolzWerken.net (DE)
• Befestigungsfuchs.de (DE)