Durable: the standoff nail is made of stainless steel, which ensures strength and lightweight on the basis of lightweight and easy to use, scratch-proof , support for you to use for long-lasting usage. Diameter : 19mm Easy to install: install the plastic expansion tube into the wall and fix the standoff screw with screw, the contact surface between the screw and the product is protected by rubber pad. Rang of use: the wall standoffs screws are good choice for company, office, supermarkets, store, shops, markets, bedroom, such as glass sign, acrylic sign, acrylic plate, acrylic picture frame indoor and outdoor advertising boards, photo. Versatile glass standoff bolts work perfectly for installing glass railings, shower doors, cabinet panels, stair handrails, display boards and kitchen countertops., Manufacturer: AQCDPJYU