1.5" Deck Hardware Bolts

This website by far is one of the best to go to for anything electric skateboard or longboard wise, I have built many of them and I refer everyone I know to here.

These bolts are exactly what you expect, They're 1.5" long as advertised and their material is sturdy and goes perfectly with my custom bamboo deck (bamboo's color with this glossy black looks awesome). You can also cut off a bit of the screw with a dremel if you want because I found mine to be a bit too long and wanted the whole thing to be smooth throughout (I used these not only for my trucks but for my battery and receiver enclosures). If you drill your holes with a nice countersunk at the top (this is assuming you make your own deck), your deck should be seamless.