125-Piece M8-1.25 x 40mm DIN 7500 Type E Metric Thread Rolling Screws for Metal - Hex Socket Head Cap Screws - Steel Zinc Plated - Ideal for Automotive, Machinery & Metal Fabrication Projects

Also known as thread forming screws, thread rolling screws, trilob screws, or trilobe screws.An internal hex socket drive is also known as an Allen drive.Diameter (Nominal): M8Thread Pitch: 1.25Diameter (Dimension): 8mmLength (Nominal): 40mmThread Length: 40mmDrive Size: 6mmHead Diameter: 13mmHead Height, Overall: 8mmProduct Class: Externally Threaded FastenersOrder: Thread Cutting FastenersCategory: Thread Rolling ScrewsSystem of Measurement: MetricBrand: Aspen Fasteners®Form and Design: Trilobe Triangular Body with Threads for MetalsHead Style: Cylindrical HeadDrive Style: Hex Socket DriveThreading: Machine Screw ThreadingThread Length: Full ThreadThread Direction: Right-Hand ThreadMaterial: SteelMaterial Grade: AISI-SAE C1022 SteelMaterial Processes: Case HardenedCoating: Zinc Plated and WaxedCoating Color: ClearHardness Rating: Vickers HV 450Standards and Specifications: DIN 7500 Type E

Also known as thread forming screws, thread rolling screws, trilob screws, or trilobe screws.

An internal hex socket drive is also known as an Allen drive.