1、Made of high quality stainless steel, high strength, rust resistant and corrosion resistance. 2、High precision screw threads for stable fixation and longer service life. 3、Each bolt is equipped with buffer rubber circle to resist to shake. 4、Equipped with tapping screws, easy to use. 5、Widely used for fixing and supporting glass advertise board, shop sign, mirror, show shelf, etc. Features: Made of high quality stainless steel, high strength, rust resistant and corrosion resistance. High precision screw threads for stable fixation and longer service life. Each bolt is equipped with buffer rubber circle to resist to shake. Equipped with tapping screws, easy to use. Widely used for fixing and supporting glass advertise board, shop sign, mirror, show shelf, etc. Specification: Material: Stainless Steel Wright: 104-118g/ 3.7- 4.2oz Size (diameter*length): 19*40mm/ 0.7* 1.6inch; 19*50mm/ 0.7*2inch; 19*60mm/ 0.7* 2.4inch (Optional) Usage method: 1. Use a percussion drill to drill holes in a fixed position 2. Select a suitable expansion plug or wooden plug and insert it into the drilled hole 3. Screw off the decorative cap before fixing the advertising nail on the wall with self-tapping nails 4.According to the size, pore size and weight of advertising sign, use the appropriate self-tapping nail to fix the advertising nail. (The length, diameter and size of self-tapping nail should be considered.) Package List: 4 x Glass Standoff Pin 4 x Tapping Screw