Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.Button head cap screws have a wider bearing surface and maintain a low head profile.An internal hex socket drive is also known as an Allen drive.A4 stainless steel is functionally equivalent to 316 grade and is also known as "marine grade".Stainless steel significantly improves resistance to tarnishing or corrosion.Diameter (Nominal): M12Thread Pitch: 1.75Diameter (Dimension): 12mmDiameter (Minimum): 11.73mmDiameter (Maximum): 12mmLength (Nominal): 70mmThread Length: 70mmRecess Size: 8mmHead Diameter: 21mmHead Diameter (Minimum): 20.48mmHead Diameter (Maximum): 21mmHead Height, Overall: 6.6mmHead Height, Overall (Minimum): 6.24mmHead Height, Overall (Maximum): 6.6mmProduct Class: Externally Threaded FastenersOrder: Machine Thread FastenersCategory: Socket Head Cap ScrewsSystem of Measurement: MetricBrand: Aspen Fasteners®Head Style: Button HeadDrive Style: Hex Socket DriveThread Length: Full ThreadThread Direction: Right-Hand ThreadMaterial: Stainless SteelMaterial Grade: A4 Stainless SteelCoating: UncoatedStandards and Specifications: ISO 7380-1