8 Set M6x20 Thumb Screw Plastic Round Shape Head Threaded Knurled Grip Knobs Clamping Screw with Nut Washer

If you want to fasten object, twist the ornamental plum blossom type head to screw in without any other tools, easily fasten the two accessories together with bolt and nut. 8 Set Thumb Screw Kit List: 8pcs x Thumb Screws M6x30; The max head diameter is 16mm, bolt thread size is M6x1.0, diameter of screw is 6mm, length is 20mm. 8pcs x Washers M6x12; Internal diameter is 6mm, external diameter is 12mm, thickness is 1.5mm. 8pcs x Nuts M6; Nut thread size is M6x1.0, height is 5mm.