ITEM NAME:180PCS Plastic M3 Nylon Hex Spacers Screw Nut Stand-off Assortment Kit Feature: There are 6 types M3 Threaded Male-Female Standoff, each type 10pcs and 60pcs nuts, 60pcs screws. Come with a plastic box. Convenient to use. Durable and practical. Application in electronics, computers, PC board, DIY hobby etc. to replace the screw fasteners. Specification: Brand new Material: Nylon Color: Black Standoff Length 6~20mm (not include male end thread length), Male end thread length: 6mm Screw Length: 6mm (not include top head) Thread: M3 (3mm) Thread pitch: 0.5mm Package included: 10 x M3x20mm Spacers Male-Female 10 x M3x15mm Spacers Male-Female 10 x M3x12mm Spacers Male-Female 10 x M3x10mm Spacers Male-Female 10 x M3x8mm Spacers Male-Female 10 x M3x6mm Spacers Male-Female 60 x M3x6mm Screws 60 x M3 Nuts 1 x Plastic Box.There are 6 types M3 Threaded Male-Female Standoff, each type 10pcs and 60pcs nuts, 60pcs screws. Standoff Length 6~20mm (not include male end thread length), Male end thread length: 6mm. Thread: M3 (3mm).