ISO 14581 formerly referred to the DIN 965 specification.Machine screws are designed for applications with a pre-tapped hole or mated to a threaded nut.A 6-lobe recess is also known as a hexalobular internal drive.A2 stainless steel is functionally equivalent to 304 grade, also known as 18-8 stainless steel.Stainless steel significantly improves resistance to tarnishing or corrosion.Diameter (Nominal): M2Thread Pitch: 0.4Diameter (Dimension): 2mmLength (Nominal): 20mmThread Length: 18.8mmRecess Size: T6Head Diameter: 3.8mmHead Diameter (Minimum): 3.5mmHead Diameter (Maximum): 3.8mmHead Height, Overall: 1.2mmProduct Class: Externally Threaded FastenersOrder: Machine Thread FastenersCategory: Machine ScrewsSystem of Measurement: MetricBrand: Aspen Fasteners®Head Style: Flat Countersunk HeadHead Style Detail: 90 Degree CountersinkDrive Style: 6Lobe DriveDrive Detail: Torx® Generic AlternativeThread Length: Full ThreadThread Direction: Right-Hand ThreadMaterial: Stainless SteelMaterial Grade: A2 Stainless SteelCoating: UncoatedStandards and Specifications: ISO 14581