150 Pieces Set: The set contains 75pcs M5 screws and 75pcs M5 nuts, the screw specifications are M5x10 M5x16 M5x20 M5x25 M5x30, 15pcs for each specification. Standard and Precise: M5 hex socket screws and nuts conform to the standardized system, and the average error is less than 0.01mm.
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