iExcell 600 Pcs Metric M3 DIN912 Stainless Steel 304 Hex Socket Head Cap Screws and Nuts Assortment Kit

? Meets/Exceeds: DIN 912, DIN934 ? Stainless steel 304, high strength and anti-corrosion in various environments ? Screw Head : Socket Cap; Screw Drive: Hex Socket , Known as Internal Hex Drives ? Easy to store: these screws and nuts come in an easy-use storage case Item---Thread Length----Total Length M3 x 4--------4mm--------7mm M3 x 5--------5mm--------8mm M3 x 6--------6mm--------9mm M3 x 8--------8mm-------11mm M3 x 10------10mm-------13mm M3 x 12------12mm-------15mm M3 x 14------14mm-------17mm M3 x 16------16mm-------19mm M3 x 18------18mm-------21mm M3 x 20------20mm-------23mm M3 x 25------25mm-------28mm M3 x 30------30mm-------33mm Package Contains: ?M3 x 4----------50 Pcs ?M3 x 5----------50 Pcs ?M3 x 6----------50 Pcs ?M3 x 8----------50 Pcs ?M3 x 10---------50 Pcs ?M3 x 12---------50 Pcs ?M3 x 14---------25 Pcs ?M3 x 16---------25 Pcs ?M3 x 18---------25 Pcs ?M3 x 20---------25 Pcs ?M3 x 25---------25 Pcs ?M3 x 30---------25 Pcs ?M3 Nuts--------150 Pcs Total: 600 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 , have a recessed drive, and are 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