how to assemble press stud fasteners?
you really need a tool for the job, but press studs come in four parts, 1) male, 2) backing 3) female 4) backing put small hole in material, put male on 1 side and 1 backing on the other, you press them together, then the bit on the backing that goes through the male needs spreading, the tool spreads this to stop them coming apart, while another tool stops the seen part (logo on levis etc) getting damaged, then repeat same action with female you may be able to use a hammer & nail, to spread.