General description These 100 pieces screw sleeves feature countersunk head screws and come in various sizes including M6, M8, and M10. Made from high-quality carbon steel, they are designed for durability and resistance to corrosion and rust. Technical specifications Material: Carbon steel Surface treatment: Blue and white zinc plated Sizes included: M6 x 10mm (25pcs), M6 x 15mm (15pcs), M6 x 17mm (15pcs), M6 x 20mm (10pcs), M8 x 15mm (15pcs), M8 x 20mm (10pcs), M10 x 20mm (5pcs), M10 x 25mm (5pcs) Total pieces: 100 Installation Simply drill the correct size hole and install using an Allen wrench or an optional drive tool. Usage These screw nuts are ideal for applications in pine, plywood, composite panels, ready-made furniture, drawer handles, display cases, and shipping boxes.