APPLY TO - Standoff screws are suitable for fixing acrylic, glass plate or wooden board, such as fixing picture frames, display boards, poster frame boards, murals, advertising signs, etc. It is widely used in households, shopping malls, offices, stores, art exhibitions, public billboards, etc.SPECIFICATION:Material: Stainless SteelTotal Size: 19mm(D)x102mm(L) /0.75x4.03-inScrew Thread Size: 9.5mm(D)x18mm(L) /0.37x0.69-inBottom Hole Dia.: 5mm /0.2-inStand Height: 95mm /3.74-inFit Max Board Thickness: 12mm /0.47-inFit Max Board Hole Dia.: 13.5mm /0.