Black Round head Bolts Nuts and Washers Series set Carbon steel F-310pcs

【Combination Size】Our Hex Socket Round Button Head Bolts and nuts Washers: M5x8,M5x12,M5x16,M5x20,M5x30,M6x10,M6x20,M6x30,M6x40,M8x30,M8x40,Total 310pcs, 11 kinds of models. Both the screws and nuts are placed in a transparent plastic box with matching labels, easy to use and install.

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