【Size】: In the package, there are 100pcs M6 hex nut wood thread insert. The screwing depth is 15mm, the drilling hole diameter is 8mm, the head diameter is 12mm, the internal thread is M6. 【Materials】: This M6 threaded insert is made of high quality zinc alloy, which is hard, not easily deformed and has good resistance to oxidation and rust, can be used for a long time. 【Threaded at 【Inner and Outer】: This M6 wood insert is with thread both inside and outside, the inner thread allows for tighter tightening and prevents loosening; the outer thread is anti-slip and makes installation easier. 【Easy to Use】: This M6 threaded insert with hexagonal shape and internal and external thread design make it more convenient to use. Just drill a hole of suitable size, then put the nut and tighten it, and you can easily assemble what you need. 【Multi-use】: The M6 threaded insert is suitable for hardwood, solid wood, plywood, fiberboard, etc. You can use it to assemble your cabinets, beds and other