8603-S Seki Towa Singer 29K Shuttle Hook Patcher Machine Shuttle Hook. This is the Standard size shuttle hook that the seki spool sits in. (The spool with the slot in) The shuttle hook comes complete with a thread tension spring. The job of the shuttle hook is to pick them up from the needle & form a stitch. Part Number 8603-S Bobbin for this shuttle is Part No 8604-S Please be aware seki bobbins (part no 8604-s) will only fit into a seki / towa shuttle hook Part No 8603-S For tension spring use number 8611 and regulating screw use number 662. Need Help or Advice? Unsure of exactly what you need? Or can’t see your parts here? Please call one of our Engineers who will be delighted to help. Internal Parts are Still Available and can be supplied on a ‘Special Order’ Check out the PARTS BOOK or Please Contact Us for Price & Availability.
