- Packs of flexible jumper wires for use with our plugblocks Wires are terminated in hard pins at each end except spade pack. This has a spade terminal on one end for use with terminal posts such as those on FD32K Wires are insulated 11 strands of 0.16mm copper conductor with a 7mm long 0.6mm diameter pin. Type Flexible length Overall length 5050mm 75mm 7070mm 95mm 100100mm 125mm 150150mm 175mm 200200mm 225mm Spade 100mm 128mm