PS: The specifications of this product are:
200pcs hexagon socket screws:
304 hex socket set screws with flat point DIN913 M3X3 (20)
304 hex socket set screws with flat point DIN913 M3X4 (20)
304 Hexagon socket set screws with flat point DIN913 M3X6 (20)
304 hexagon socket set screws with flat point DIN913 M4X4 (20)
304 hexagon socket set screws with flat end DIN913 M4X6 (20)
304 hexagon socket set screws with flat end DIN913 M5X5 (20)
304 hexagon socket set screws with flat point DIN913 M5X8 (20)
304 hexagon socket set screws with flat point DIN913 M6X6 (20)
304 hex socket set screws with flat point DIN913 M6X10 (20)
304 hex socket set screws with flat point DIN913 M8X8 (20)