Door expansion adjusting handle and latch set

A door expansion adjusting handle and latch set for mounting on a door, comprising:

• a first handle positioned on a first side of a door having a thickness;
• a shaft having two ends, wherein the first handle is fixedly connected to one end of the shaft and wherein the second end of the shaft is threaded;
• a second handle which is positioned on a second side of the door and is retained to the second end of the shaft by a nut, the nut having a cup and permitting the second handle and shaft to rotate relative to each other but preventing the second handle from being removed from the shaft, the second handle having a cavity formed at a front thereof and having a hole passing through the cavity through which the shaft rotatably passes;
• a latch that is operated by rotating the first handle and/or the second handle;
• a cam that is connected to and rotated by the second handle, which cam operates the latch independently of operation of the latch by the first handle turning the shaft which also operates the latch;
• and
• a coil spring that is positioned on the shaft between the cup of the nut and in the cavity of the second handle to take up any changes in the thickness of the door and which coil spring automatically biases the first handle and the second handle towards each other without any need for a user to make further adjustments of a position of the nut on the shaft, wherein if the thickness of the door increases or decreases, the biasing member coil spring will automatically compress or expand as necessary to change a working length of the shaft between the first and second handles and to permit the second handle to move closer or farther from the fixing member to accommodate the increase or decrease in door thickness.