SEI-CS-50172 | SEIKO PULLEY ENGAGING SCREW FORMERLY 140037

SIN-545318 | Needle Clamp Screw for Singer 29K Boot Patcher | 9/64 40 L3.5 NSS Needle set screw 544383

SIR-SK216 | 5292 | 3637 Siruba/ Yamato / Pegasus Needle Set Screw 3.10mm 3.30mm

SIN-8611 | Singer Bobbin Case Tension Spring 29K71 HA-46089 screw 662

SIN-8610 | Singer Bobbin Retaining Spring 29K71 + 73 for shuttle carrier screw is 241

SIN-223 Singer SCREW