Here's how threaded inserts work inside the wood! You normally don't see this view since the threaded insert is fully surrounded by wood in typical uses. We use Rampa Inserts in Bolts when attaching our table legs to our wooden table tops because the bolts can be easily removed and screwed in again over and over without the risk of stripping the hole. The other main benefit we really like from using threaded inserts and bolts is that we can flat pack our table and legs with a small bag of hard w