Leatherwork Guidebook - Flipbook - Page 9
Preparing to Sew
Choosing Thread Size
When sewing leather, the thread
size used is generally selected for
its aesthetic look. In such cases,
simply match the needle to the
thread using the chart below. If the
needle or thread breaks during
sewing, then it is necessary to go
up in size. If getting the desired
thread tension is not possible (knot
constantly shows on the bottom)
this is indicative of the thread and
needle being too large.
For needle and thread recommendations based on
T HR E AD S I Z E
NEED LE SI Z E*
Tex 18
#10 or #12
Tex 30
#10 or #12
Tex 35
#10 or #12
Tex 40
#12 or #14
Tex 45
#14 or #16
Tex 50
#14 or #16
Tex 52
#14 or #16
Tex 70
#16 or #18
Tex 75
#16 or #18
Tex 90
#18-#20
Tex 92 (PTFE)
#14-#19
your sewing application, view our “Thread & Needle
Recommendation Guide” on the Sailrite website. Search
#300032XHT at Sailrite.com to learn more.
*If sewing 4 or more layers, use the larger needle size; 3 or
fewer layers, use the smaller size.
Leatherwork® Guidebook
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