500pcs M2 M2.5 M3 Brass Heat Set Insert Nut Hot Melt Injection Thread Knurled Double Twill Embedment Copper Nut Assortment Kit

500pcs M2 M2.5 M3 Brass Heat Set Insert Nut Hot Melt Injection Thread Knurled Double Twill Embedment Copper Nut Assortment Kit

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