POR-6Z3538 | 007013 | Porter Screw ( 6600263)

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

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

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

SIN-223 | Singer SCREW

SIN-8610 | TK9609 | Singer Bobbin Retaining Spring 29K71 + 73 for shuttle carrier (screw is 241)