50pcs/lot M2 M2.5 M3 M4 M5 M6 M8 Brass Insert nut Injection Molding Brass Knurled Th Read Inserts Nuts

50pcs/lot M2 M2.5 M3 M4 M5 M6 M8 Brass Insert nut Injection Molding Brass Knurled Th Read Inserts Nuts

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