View Single Post
Old 09-18-2015, 05:19 PM
  #3  
Tartan
Power Poster
 
Join Date: Mar 2011
Location: Ontario, Canada
Posts: 41,461
Default

The heaviest thread I have used on my old singer Treadle with the shuttle bobbin is the thread for sewing jeans. I adjusted the top tension and loosened the screw on my bobbin shuttle. It sewed one line of stitches on double over blue jean hem fine.
Tartan is offline