iExcell 100 Pcs M5 x 8mm/10mm/12mm/16mm/20mm Stainless Steel 304 Hex Socket Head Cap Screws Bolts Assortment

? Stainless steel 304, high strength and anti-corrosion in various environments ? Screw head style: socket cap; screw drive style: hex socket, known as internal hex drives ? These screws come in an easy-use separated girds storage box Item---------------Thread Length------------Total Length M5 x08mm-----------08mm/0.31"------------13mm/0.51" M5 x10mm-----------10mm/0.39"------------15mm/0.59" M5 x12mm-----------12mm/0.47"------------17mm/0.67" M5 x16mm-----------16mm/0.63"------------21mm/0.83" M5 x20mm-----------20mm/0.79"------------25mm/0.98" Package Contains: M5 x 08mm ----------20 Pcs M5 x 10mm ----------20 Pcs M5 x 12mm ----------20 Pcs M5 x 16mm ----------20 Pcs M5 x 20mm ----------20 Pcs Total: 100 Pcs About Hex Socket Drives Hex socket drives, also known as internal hex drives, have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench. About Socket Cap Head Socket cap head, also known as Allen head, has a recessed drive, and is commonly used when there is not enough clearance for a conventional wrench or socket. They are fastened with an Allen wrench, which is also called a hex wrench or hex key.