we have many types of terminal blocks,just as: pcb screw terminal blocks,pcb spring terminal blocks,plug-in terminal blocks,barrier terminal blocks,feed through terminal blocks,screwless terminal block.

different terminal blocks have different pitch:

pcb screw terminal blocks: 2.54mm pitch,3.5mm pitch,3.81mm pitch,3.96mm pitch,5.0mm pitch,5.08mm pitch,7.5mm pitch,7.62mm pitch,6.35mm pitch,9.5mm pitch,10.16mm pitch,12.7mm pitch,15.0mm pitch,19.0mm pitch.

pcb spring terminal blocks: 2.5mm pitch,2.54mm pitch,3.5mm pitch,3.81mm pitch,5.0mm pitch,5.08mm pitch,7.5mm pitch,7.62mm pitch,10.0mm pitch.

plug-in terminal blocks: 2.5mm pitch,2.54mm pitch,3.5mm pitch,3.81mm pitch,3.96mm pitch,5.0mm pitch,5.08mm pitch,7.5mm pitch,7.62mm pitch,10.16mm pitch,15.0mm pitch.

barrier terminal blocks:6.35mm pitch,7.62mm pitch,8.25mm pitch,8.5mm pitch,9.0mm pitch,9.5mm pitch,10.0mm pitch,11.0mm pitch,11.11mm pitch,12.0mm pitch,13.0mm pitch,14.0mm pitch,16.0mm pitch,16.7mm pitch,21.0mm pitch,27.0mm pitch.

feed through terminal blocks: 8.0mm pitch,10.0mm pitch,12.0mm pitch,14.0mm pitch.