Standoff Mounts Size: Diameter: 0.748 inch, length: 0.98 inch, length: 0.748 inch, cap height: 0.157 inch, thread Size: 0.86 x 0.31 inch (length * diameter). - Standoff: Made of high-quality stainless steel, brushed stainless finish and clean look, corrosion-resistant and scratch-resistant. Mounting Hardware Kit: Comes with all necessary components, including 8 pcs sign standoffs, 16 pcs rubber spacers, 8 pcs screws, and 8 pcs wall anchors. No additional accessories required. Glass Acrylic Nails for Glass Artwork and Sign Display: The acrylic sign holder is designed to support panels made of acrylic, wood, aluminum, organic glass, and is suitable for installing modern dry erase boards, glass paintings, or artworks on the wall. Wall mounting screws are ideal for use in offices, supermarkets, shops, bedrooms, museums, restaurants, and more. Easy Installation: Install the plastic wall anchors into the wall and secure the standoff screw. The contact surface between the screw and the product is protected by rubber spacers. (Please use a screwdriver to assist in mounting the standoff nails.) Size: 19 x 25 mm Material: Stainless steel Color: Black Package Contents: 8 x Glass Standoff Note: Light and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement allowance is +/- 1-3 cm.