Organ Industrial Sewing Machine Needle 16X231-70 Industrial Needle (16X231-70) 1738-70, SY2270-70, 16X257-70,DBX1-70, DBX257-70 Bernina Models: 203, 204, 217 & 850 Brother Serger Models: 523N, M523, 523ND, 524N, M524, M525, M526, 526 526LCW & 526D Elna Sewing Machine Models: 7100 Husqvarna Viking Serger Models: 234D Juki Sewing Machine Models: DDL-227, DDL-552, DDL-553, DDL-555, DDL-5550N, DDL-8300N & DDL-8700 Pfaff Serger Models: 794, 799,795, 796 Singer Sewing Models: 31-15, 31-16, 31-19, 31-20, 31-35, 331K, 14U14, 14U52, 14U12, 14U22, 14U53, 14U13, 14U23, 2191D200A and 2191D300A White Sewing Machine Models: 305 DB X 1 16X231 16X257 1738 70/10.