375/400pcs Injection Molding Knurl Insert Nut Embedded Nutsert Assortment Kit Set 10 Mix Size M2 M2.5 M3 M4 Solid Brass Copper

375/400pcs Injection Molding Knurl Insert Nut Embedded Nutsert Assortment Kit Set 10 Mix Size M2 M2.5 M3 M4 Solid Brass Copper

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