Screw Type Terminal Blocks CUI Devices Screw Type Terminal Block connectors feature a range of pitches, colors, orientations, and housing styles. These blocks offer 500MΩ insulation, 2 to 24 pole counts, and a pitch of 5mm, 5.08mm, or 7.62mm. The mounting-angle orientation options include horizontal, vertical, and 45°. These CUI Devices screw-type connectors are both UL and CE safety certified and operate in a temperature range of -40°C to +105°C.