Solid brass pyramid and post, with nickel finish. Also available as simply solid brass (uncoated, so they will develop a patina). These can be placed squarely to the strap edge, or spin them 45 degrees (as pictured) so they cover all the angles. These are a good height so they don't get in the way or stab you with pointy tips. For size reference, photo shows 4 pyramids installed on a 1 inch wide leather strap.

If you are unsure of the quantity of studs that will fit your strap, you may either inquire first, or order more than you think you need. I can refund an overage, but not charge more for extra (unless you make a new order, which is more complicated for both of us).