170Pcs Plated Carbon Steel Rivet Nut M3 M4 M5 M6 M8 Flat Head Rivet Nutsert Cap. Type:M3 M4 M5 M6 M8 M10 M12. 10 M8 Rivet Nut. The knurled nut makes it easier to insert into the work piece. 5 M12 Rivet Nut.
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