Buy socket buttons with a flanged head from one of the largest fasteners suppliers online, these socket buttons are only available in metric sizes and are sold in packs or singles, meaning you never have to buy more than you need. When it comes to fasteners here at Francis Kirk and Son we know our stuff, we've been selling socket buttons, socket head caps, socket countersunk and non standard socket screws for over 153 years, not finding what you're looking for? Why not give our friendly sales team a call.