Tempered Glass Hardware. The best quality pencil polished tempered glass in the industry at great prices. Create your own beautiful Free Standing Display. You can design your own unit easily by using our connectors and tempered glass from our standard size list. Assembly is easy and quick with a flat head screwdriver. The hinge, hasp and combo lock create a convenient locking case worthy of your retail store's finest collectibles. Our connectors are designed for 3/16" thick tempered glass. Use on non tempered glass is hazardous and may be a violation of building and safety codes. Remember: to include overall dimensions of any 1/2" per connector intersection.