I'm trying to order some extra screws for a project I'm working on. In the manual, they are called "BT3*10mm BH screw." However, I am not able to find the right place to buy these from. I searched for anything BT3 but could not find the correct match. Does anyone know what the part number means or where I can find the right screw to match this one? Attached is a picture of the screw I need. The threaded length is 10mm.
I think what you are showing in your picture is a 3x10mm blind taper, binding head sheet metal screw. The BT stands for blind taper; the BH stands for binding head; 3x10mm is the size. You might have to file the point off of a standard sheet metal screw to get your blind taper - they're hard to find without a point.