Socket cap screws are precision fasteners often used in machine parts, die fixturing and clamping.A cylindrically shaped socket head cap screw is considered the strongest of all head styles.An internal hex socket drive is also known as an Allen drive.Alloy steel fasteners are significantly stronger than standard low carbon steel fasteners.Mechanical zinc plating is also known as peen plating, mechanical deposition, or impact plating.Mechanical zinc is similar to zinc electroplating but eliminates the risk of hydrogen embrittlement.Diameter (Nominal): 1/2"Thread Pitch: 13Diameter (Dimension): 0.5"Length (Nominal): 3"Thread Length: 1.5"Drive Size: 3/8"Head Diameter: 0.75"Head Height, Overall: 0.5"Product Class: Externally Threaded FastenersOrder: Machine Thread FastenersCategory: Socket Head Cap ScrewsSystem of Measurement: InchBrand: Aspen Fasteners®Head Style: Cylindrical HeadDrive Style: Hex Socket DrivePitch: UNC Coarse ThreadThread Length: Part ThreadThread Direction: Right-Hand ThreadMaterial: SteelMaterial Grade: Alloy SteelMaterial Processes: Heat TreatedCoating: Mechanically Zinc PlatedCoating Color: ClearCoating Standard: Type 2 Mechanical Zinc 0.0002" Cr+3 RoHSStandards and Specifications: ASTM B695-2000