I am in need of “shoulder” screws, please see attached pictures. Not quite a carriage bolt, these screws are typically used to clamp something to a tube, in this case, Bowden Touriste calipers to a seat stay or fork blades.

The threads pictured are 5mm in diameter and 7mm in length. I am look for at least 3 screws and nuts 5mm in diameter and a minimum of 15mm in length. While I prefer vintage, I’ll take any potential source. Thank you.