The button studs are made in solid brass. The studs are easy to set, they have a screw on base  with a really nice tolerance. These button studs are a great simple way to close a strap or flap. 

For setting all you need to do is punch a hole slightly larger than the shaft, set on the button stud and screw it in. On the top side of the leather you can punch a hole slightly larger than the shaft and then add a relief cut to allow the leather to open around the cap but then close back up after it passes through. 

Each order includes 5 complete sets of button studs (10 total pcs)