Carl Thame

I purchased a Thermaltake RGB power supply. Model TPI-1250 . 1250 watts power supply. There are 4 screws that goes in the back of the power supply that holds the power supply to a plate that holds it to the Chassis of the computer. These 4 screws are missing from the power supply. Does anybody knows the specs or the screw type that fits in the four holes so i can purchase them. Any information would help. THanks