Photo 1 of 100-pack M3 x 4L x 5D Brass Threaded Inserts, Heat Set Knurled Nuts for 3D Printing & Plastics, Female Threaded Brass Inserts

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Photo 1 of 100-pack M3 x 4L x 5D Brass Threaded Inserts, Heat Set Knurled Nuts for 3D Printing & Plastics, Female Threaded Brass InsertsPhoto 2 of 100-pack M3 x 4L x 5D Brass Threaded Inserts, Heat Set Knurled Nuts for 3D Printing & Plastics, Female Threaded Brass Inserts