uxcell M6x40mm Alloy Steel Hex Socket Cap Knurled Head Screws Bolt 10Pcs Product Name : Socket Cap Head Screws;Material : Alloy Steel;Type : M6 x 40mm Thread Dia : 6mm;Length(Exclude Knurled Head) : 40mm;Thread Pitch : 1mm Head Dia : 10mm;Fit Hex Key Size : 5mm;Head Type : Knurled Head Head Socket : HexType;Color : Black Weight : 98g;Package Content : 10 xSocket Cap Head Screws