binifiMux 80 Pieces M5 Countersunk Flat Head Phillips Machine Screws and Hex Nuts Kit 304 Stainless Steel 20mm 25mm 30mm 35 mm 40mm

Package Content: M5 x 20mm---- 10pcs -- Full thread, M5 x 25mm---- 10pcs -- Full thread, M5 x 30mm---- 10pcs -- Full thread, M5 x 35mm---- 10pcs -- Full thread, M5 x 40mm---- 10pcs -- Full thread, M5 Hex Nuts --- 30pcs. About Countersunk Screws: A countersunk screw is a type of fastening that sits flush with the surface of the material it occupies. These screws typically are used so that you can cover them easily with either a screw cap or piece of wood. Other applications include the need for a fastening not to protrude so other objects can rest upon it stably, or to fasten it further to another object.