Check the listing for details. Screw Back Stud Spike (10x7mm) 8pcs, Flat Head Stud Rivets Silver Tone. Condition: New. Listed at 10.70 USD. APPLY TO - Screw back spike studs are suitable for all kinds of leather items, such as bags, belts, handbags, shoes, clothes, etc., to decorate your items while protecting your leather.SPECIFICATION:Material: Zinc AlloySurface Finish: ElectroplatingRivet Size: 10mm(Base Dia.) x 7mm(H) / 0.39-in x 0.28-inScrew Thread Size: M3(D) x 6mm(L) / M3 x 0.24-inScrew Thread Pitch: 0.5mmScrew Head Diameter: 8mm / 0.31-inQUANTITY INCLUDED - 8pcs x Screw Back Rivet StudsADVANTAGE - Made of zinc alloy material, electroplated surface finish, with good wear and corrosion resistance, flexible, durable, and not easy to deformation or rust.INSTALL - Screw design, easy to install and removable. First, punch a hole where you want it, push the screw through the hole, and finally tighten the rivets and studs with a screwdriver to complete the installation.