Metallic Machine Needles Size 12/80Metallic Machine Needles Size 12/80 at discount prices! The special construction of the Metallica needle provides trouble-free sewing with metallic thread. It has a large eye to make threading easier and to accommodate heavier thread. It also has a large groove to prevent shredding of the delicate metallic threads during the stitch formation. 5/Pkg. By Euro-Notions 1743.