Features:Made of stainless steel, rust and corrosion resistant.Environment-friendly, no pollution, high hardness.Many length choice in one set meet daily basic needs.Well packed in a transparent plastic box.Size:M2x4mm 100pcsM2x5mm 100pcsM2x6mm 100pcsM2x8mm 100pcsM2x10mm 100pcsM2x12mm 100pcsM2x16mm 100pcsM2x20mm 100pcsMetric thread pitch: 0.4mm(M2)Fastener Thread Direction: Right HandThe length does not include the head.Metric standard Specification ScrewSize: A(thread diameter) x L(thread length) Notes: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.