Material:Threaded Inserts

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Threaded Inserts

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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: