Standoff Mounts Size: Diameter: 0.748 inch, total length: 0.98 inch, base length: 0.748 inch, cap height: 0.157 inch, thread Size: 0.86 x 0.31 inch (length * diameter). Professional-look Standoff: Made of high-quality stainless steel, BRUSHED STAINLESS FINISH AND LOOK CLEAN, corrosion-resistant and scratch-resistant. Mounting Hardware Kit: Come with ALL YOU NEED, including 8pcs sign standoffs, 16pcs rubber spacers, 8pcs screws and 8pcs wall anchors. No need to buy extra accessories. Glass Acrylic Nails for Glass Artwork and Sign Display: The acrylic sign holder is designed to SUPPORT PANELS OF ACRYLIC, WOOD, ALUMINUM, organic glass, install modern dry erase boards on the wall, and hang glass paintings or artworks on the wall. Wall mounting screws are a good choice for office, supermarkets, shops, bedrooms, museum, restaurant and etc. Easy Installation: Install the plastic wall anchors into the wall and fix the standoff screw, the contact surface between the screw and the product is protected by rubber spacers (Please use screwdriver to assist the mounting of the standoff nails.) size: 19 x 25mm Material:Stainless steel colour:black Package Contents: 8 x Glass Standoff