Screw Terminals with 3.5mm pitch pins. Comes in 2 or 3 positions and have the really cool feature of slide-locking together to form any size you need (4, 5, up to 20 without problems). Rated up to 125V @ 6A. Terminal can accept 30 to 20AWG wire. 3.5mm/138mil pin pitch will not fit standard 0.1" perf boards but this is the most common pitch screw terminal.
SFE Eagle Library has this part!
708084 Screw terminal - 2pinScrew Terminals with 3.5mm pitch pins. Comes in 2 or 3 positions and have the really cool feature of slide-locking together tfalseExcl. Tax:€0.66Incl. Tax:€0.81
808274 Snap-action 3-Wire Block Connector (12-28 AWG) - Pack of 3Each block connector has a metal block inside and three levers that snap open and close to bind stranded/solid-core wire. No falseExcl. Tax:€3.47Incl. Tax:€4.23
343737 3737 - 3pi+ 32U4 Robot - Standard Edition (30:1 MP Motors), AssembledRobot completo ad alte prestazioni, in Kit. Basato su sistema Arduino compatibile, con encoder a quadratura per controllo di falseExcl. Tax:€150.00Incl. Tax:€183.00