Camdenboss 16a low profile screw terminal blocks 5mm pitch camdenboss ctb120112bk low profile 5mm pitch screw terminal blocks from the camdenboss ctb1201 series with 12 poles these blocks have a double tongue and groove mechanism for stronger interlocking and stability the full range of terminal blocks is available from rapid from 2 pole right up to 27 pole camdenboss ctb120112bk 12 way 16a low profile terminal block 5mm pitch