Aurifil 40wt Machine quilting and embroidery favorite

Cross stitch : This thin thread is very versatile and is used singly, doubled or tripled depending on the effect required. Perfect for precise work on fine fabric in 1 strand (miniature work)

Hand piecing : Our customers love this weight.

Lace : Bobbin lace & Machine lace

Longarm quilting : Great for all long arm quilting, edge to edge, pantographs, custom quilting, needle (3.5, 4.0), pair with 50W bobbin thread . Fine enough for ditch stitching and has sufficient presence to give good results for general quilting with motifs

Machine applique' : Suitable for most all machine applique' techniques: raw edge applique' with a straight stitch,  small zig zag  , blind hemming stitch , blanket stitch. Suitable also for machine applique' with buttonhole stitches

Machine embroidery : 40wt is the most popular machine embroidery thread weight .

Machine piecing : Gives a perfect result with a nice flat seam

Machine quilting : Perfect for quilting when you want to create texture, and also when you want to create a quilted motif that stands out a bit more. Same wt or Mako 50 wt in the same color in the bobbin. Use a Sharp/Microtex, quilting or even denim needles 80/12.


Max washing temperature 70°C

Diluited Chlorine use is permitted in cold water

Max ironing 150°C

Washing with tetrachloroetylene, monofluoro, trichlorometano and hydrocarbon

No tumble drying in warm air


Max washing temperature 60°C

Do not use chlorine

Max ironing 150°C

Washing with tetrachloroethylene, monofluoro, trichlorometano and hydrocarbon

No tumble drying in warm air

Sizes available

Small spool

164 yards - 150 mt

available in 252 colors  -  green plastic thread holder

Large Spool

1092 yards - 1000 mt


5140 yards - 4700 mt


109 yards - 100 mt


Keep the machine clean while stitching. Brush the lint away from the needle every time you change the top thread. Clean out the bobbin area every time you change the bobbin or start a new design - whichever comes first. It takes seconds to do it - and it's good for the machine. Put a drop of oil on the hook in the bobbin area every time you change the bobbin.It seems to me that slowing the machine down generates less lint - but I'd rather stitch faster and deal with the lint. I have come to the conclusion that the lint is not all from the thread. It's also coming from the fabric and stabilizer, especially paper based stabilizers.