binifiMux 500pcs M3 Phillips Countersunk Flat Head Machine Screws Hex Nuts Assortment Kit 304 Stainless Steel, M3 x 6mm 8mm 10mm 12mm 16mm 18mm 20mm 25mm 30mm auspowers_batchone OSOYOO 3D Printer Kit with translate OSOYOO 3D Printer Kit with RAMPS 1 They are flexible and sensitive [] Name: M3 Countersunk Screws Nuts Kit [Content:] M3 x 30mm 20Pcs M3 x 25mm 20Pcs M3 x 20mm 20Pcs M3 x 18mm 40Pcs M3 x 16mm 40Pcs M3 x 12mm 40Pcs M3 x 10mm 40Pcs M3 x 6mm 40Pcs M3 x8mm 40Pcs 220pcs M3 Hex Nuts [About Countersunk Screws:] The countersunk screws are mostly used in places where the surface of the parts cannot be raised after installation