iExcell 50 Pcs M6 x 8mm/10mm/12mm/16mm/20mm Internal Hex Drives Button Head Cap Screws Kit, Stainless Steel 304

? Meets/Exceeds: ISO 7380 ? Stainless steel 304, high strength and anti-corrosion in various environments ? Screw Head Style: Button ; Screw Drive Style: Internal Hex, known as Hex-socket drives; Fully Threaded ? Thread Size(Dia.): 6mm, Thread Pitch :1.0 mm,Head Diameter: 10.31mm/ 0.41", Head Height: 3.32 mm/0.13" ? These screws come in an easy-use separated girds storage box ***Package Quantity and Specification *** ---Item---------------Thread Length-----------Total Length-------Quantity M6 x 8mm-------------8mm/0.31"---------------11.2mm-----------10 Pcs M6 x 10mm-----------10mm/0.39"--------------13.2mm-----------10 Pcs M6 x 12mm-----------12mm/0.47"--------------15.2mm-----------10 Pcs M6 x 16mm-----------16mm/0.63"--------------19.2mm-----------10 Pcs M6 x 20mm-----------20mm/0.79"--------------23.2mm-----------10 Pcs Total Quantity----------------------------------------------------------50 Pcs ***About Internal Hex Drives*** Internal hex drives, also known as hex-socket drives, are similar to hex drives, but have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench. ***About Button Head*** Button head screws are similar to standard pan head screws but have a curved top.