Aurifil 50 wt thread is the most popular thread for quilters. It is 100% Cotton Mako thread and can be used for machine piecing quilts, hand piecing quilts, machine applique, hand needle turned applique, fine needlework, foundation piecing, miniature patchwork, detailed quilting, bobbin lace making and machine embroidery. Browse our collection of Aurifil 50wt cotton threads to find exactly what you are looking for.