Electronics-Salon Prototype Screw Shield Board Kit For Arduino UNO R3, 0.1" Mini Terminal Block. Prototype Screw Shield Board Kit For Arduino UNO R3, Mini Terminal Block. FR-4 fiber glass PCB, dual copper layers, size 67.2mm x 48mm. Pads grid / pitch 2.54mm / 0.1", hole diameter 0.8mm. Pitch 0.1" / 2.54mm mini terminal blocks, 1x 10pin, 2x 8pins, 1x 6pins. Wire range 26~18AWG, strip length 4.5mm, screws M1.6 steel, pin header and cage brass.