Size:thread diameter:4mm,length excluding head:20mm.
Material:304 stainless steel.
Made by 304 stainless steel,high hardness,no deformation,corrosion resistance,environmentally friendly,non-toxic,non-polluting.
Widely used in the home and office appliance,communication equipments,ship assembly and other machinery industry.
Machine screws are threaded fasteners that are typically used with nuts or drilled and tapped (threaded) holes.
Standard Phillips screw,smooth thread and no burr.
Package Including: 25 * pan head screw