10pcs Solid Brass Arc/Plane Button Stud Screw Rivet Screw Back Belt for Sewing Handmade DIY Leather Accessories Material 4-15mm Specifications: Material: Brass Shape: Arc Screw cap diameter: 10mm(0.39") Shaft diameter: 4mm(0.16") Optional rod length: 4mm / 5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 12mm / 15mm Quantity: 10 Use: connection handmade leather goods, luggage, straps, and other place. Package include: 10 x Brass Arc Button Stud Screw nail