Size: There are 100 wooden threaded inserts for hexagonal nut M6 in the packaging. The thread depth is 15mm, the drilling diameter is 8mm, the thread diameter is 12mm, and the internal thread is M6.Material: The M6 thread insert is made of high-quality zinc alloy, Not easy to deform, prevents oxidation and rust, and can be used for a long time.Internal and external threads: The M6 wooden insert has internal and external threads, which allow for tighter clamping and prevent loosening. The external thread is non slip and easy to install.Easy to use: The M6 threaded insert has a hexagonal shape, and the design of the internal and external threads makes it a more practical tool Easy to use. Just drill a hole of the appropriate size, then place it at the bottom and tighten it, and you can easily assemble anything you need. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.