Package Included: 30pcs Thread Length: 3/4" (not including head height) , Head Height : 0.16 inch , Head Diameter: 0.27 inch . Allen Hex Drive Size: 9/64 inch Thread Diameter: 0.16 Inch , Thread Pitch: 0.03 Inch . Material: Alloy Steel 12.9 Grade Black Oxide Material: Alloy Steel 12.9 Grade Black Oxide
Size: thread diameter d* thread length L (not including head height)
Allen Hex Socket Head Screw Bolt You can could see them around because they are widely used in a variety of industries such as construction, manufacturing, engineering, assembling landlords repairmen and so on.