Just like their set-neck counterparts. There is no flange protruding from the guitar body. At this time there are almost no production guitar company's doing neck through guitars. It is extremely labor intensive and the wood costs are much higher. Wrong Perceptions I think another even bigger reason that the bolt in neck models are perceived to be not as good as the set neck models is because there are many more cost adding options on most of the set neck models.
Many uninformed people think that the more something costs the better it has to be.
A very fair list price. These options are not available on the bolt in models . With the consumerist false notion that high price equals high quality that companies like Gibson have been shoving down consumers throats for years. It's no wonder people perceive the set neck models are better. Nothing could be farther from the truth.