Just received this kit (CNC Stepper Motor Kit: , Stepper Motor, Servo Motor, Power Supply Automation Technology Inc) and building the Solsyvla 10x9 Table. I noticed the walls of the motor do not allow the head of the machine screw to remain square; using a Phillips pan head, Stainless steel 18-8, #10-24 x 3 Machine screw.
Anyone dealt with this before and able to offer a different size screw that would provide better fitment.