A tidy and safe way to bundle wires and connect them to terminal posts?
Dupont/Mini PV connectors (made by FCI) are great for connecting wires (22-30awg) to boards. Buy authentic terminals and use the legit crimper (HT-95) if you want quality long lasting work. The ebay stuff will get you by if it is not crucial though.

check here



This link has a few of what you're describing. Also, you can by jumpers for them to bridge one screw to another.

terminal strips