When looking for T-nuts, you may come across multiple names, such as T-nuts, tee nuts, prong nuts, insert nuts, threaded inserts for wood, etc. There are flanges on the thin surface of the nut, usually with 3 or 4 “prongs”. These flanges act as hooks that are pulled into the material when the bolt is screwed into the nut. These t-nuts need to be pre-drilled for use and can be serrated to provide a better grip.

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T-nuts are designed for softer materials, such as wood or composite materials. The T-nut is a very unusual nut due to its forked design. It can be daunting to see one of these nuts and realize that you don’t know what to do with it. T-nuts are ideal for creating a flush finish on the nut side of the wood.
DIN 1624 4-prong T nuts are essential components in various applications, especially in woodworking and furniture assembly. These nuts are designed to provide a secure and stable fastening solution for threaded connections.