These black anodized finish solid brass cone dome studs are fashionable metal add-ons. These are built solid, and attach with prongs that bend back. These look great when done side by side on wide straps, and they are a good height so they don't get in the way or stab you with pointy tips. The 3/8 inch size is small yet easily visible on any 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).