Janome Sewing Machine Needle Threader - SMALL SCREW
This is the very small set screw which holds the thread in place onto the threader bar
TO SECURE THREADER PART NO. 850508002 IN PLACE
its best to remove the needle when replacing the threader then put a new needle in for testing, size 80/12 or 90/14
This will only fit the models listed or that take this part number
Part No. 000102807
MC11000 MC11000SE MC10001 MC10000 8200QC MC9900