These single-level pc board terminal blocks are offered in four different styles. The ZFKDS 1.5 terminal block is offered in 5.08-mm and 3.81-mm pin spacings with each available with an optional actuator lever. The blocks come with dual solder pins. And any number of positions can be created by interlocking the blocks. An actuator lever is provided on the single level style spring cage block for easy opening of the spring cage termination. No special tools are required when using the actuator lever. When the extraction rocker is not used, any small screwdriver-like tool can be used to actuate the lever. The spring block is especially useful in those applications requiring a quick method of termination.