M3 M4 M5 M6 M8 M10 M12Black Rivet Nut Zinc-Plated Knurled Flat Head Threaded 5/10/15/30/50PCS Metric Thread Insert Nuts Fastener

M3 M4 M5 M6 M8 M10 M12Black Rivet Nut Zinc-Plated Knurled Flat Head Threaded 5/10/15/30/50PCS Metric Thread Insert Nuts Fastener

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