APPLY TO - Double-headed standoff screws are usually used to support and fix acrylic, glass and wooden boards. It can be used to fix wine glass holders, display boards, hang two photos or posters at the same time, etc. multi-purpose. Suitable for home, office, restaurant, shop and other places.SPECIFICATION:Material: Stainless SteelTotal Size: 12mm(D)x74mm(L) /0.47x2.91-inScrew Thread Size: 8mm(D)x14mm(L) /0.31x0.55-inStand Height: 60mm /2.36-inFit Max Board Thickness: 8mm /0.31-inFit Max Board Hole Dia.: 10mm /0.39-inQUANTITY INCLUDED - 8pcs x Stainless Steel Sign Standoff Screws(Not included install Accessories)ADVANTAGE - The dual head sign holder standoffs are made of stainless steel, with a smooth surface, anti-rust, anti-scratch, wear-resistant and corrosion-resistant, sturdy and durable, and can be disassembled and used repeatedly.