This listing is for a Box of 100 Metal Bobbins for Industrial Sewing Machines.
Bobbins #40264NS is normal size bobbin, not M size large bobbin.
These popular bobbins will fit many industrial single needle sewing machines including :
for ARTISAN : 5550N, 8500N
for BROTHER : B715, B760, B714, B755, B756, B758, B737, B781, B790
for CONSEW : 100, 101, 210, 218, 219, 220, 230, 290, 291, 310, 2230R, 7360R
for ECONOSEW : DDL-5550, DDL-8500, DDL-8700
for FEIYUE : 8500, 8700
for JUKI : DDL-105, DDL-115, DDL-227, DDL-555, DDL-5550, DDL-8300, DDL-8500, DDL-8700, DDL-8900, DLD-432, DLM-522, DLM -5200, DLM-5400, DLN-412, DLN-415, DLN-5410, DLU-450
for MITSUBISHI : DB-120, DB-122, DB-126, DB-130, DB-189, DB-199, DX-370, LS2-130, LS2-150, LS2-180, LS2-190, LS2-1130
for SINGER : 95, 96, 103, 191D, 195K, 196K, 241, 245, 251, 281, 400W, 591D, 600W, 770D, 771D, 2491
for UNION SPECIAL : 61200, 61300, 61400, 61900, 63400, 63900
for YAMATA : FY8500, FY8700