Needle and Thread Chart For Sewing Machines
The following chart compares various bonded nylon or polyester sewing thread specifications and the minimum needle sizes required
The V size is the common US measurement for twisted, multi-ply bonded nylon or polyester threads. Larger numbers indicate heavier threads.
The T sizes represent the "Tex" measurement system, where the number equals the weight in grams of 1000 meters of thread. If 1,000 meters weighs 70 grams, it is a Tex 70 thread. Larger numbers indicate heavier threads.
Please note that the "Tkt" (Ticket) sizes are equivalent to Metric "M" thread sizes used in some countries. Smaller numbers indicate heavier threads.
| Minimum Needle US/Metric | Thread Size: V (T) [Ticket] | Government Size | Yds/Pound | Break Strength | Diameter |
|---|---|---|---|---|---|
| 12/80 | 33 (T30) [Tkt 80] | AA | 13,800 | 1.8 lbs | .0050" (.127mm) |
| 14/90 | 46 (T45) [Tkt 60] | B | 9,600 | 7.5 lbs | .0094" (.238mm) |
| 16/100 or 18/110 | 69 (T70) [Tkt 40] | E | 6,000 | 11 lbs | .0115" (.292mm) |
| 19/120 | 92 (T90) [Tkt 30] | F | 4,200 | 14.5 lbs | .0133" (.337mm) |
| 22/140 or 23/160 | 138 (T135) [Tkt 20] | FF | 3,000 | 22 lbs | .0163" (.414mm) |
| 24/180 | 207 (T210) [Tkt 15] | 3 Cord | 2,000 | 32 lbs | .0200" (.508mm) |
| 25/200 | 277 (T270) [Tkt 10] | 4 Cord | 1,500 | 45 lbs | .0231" (.586mm) |
| 26/220 | 346 (T350) [Tkt 8] | 5 Cord | 1,200 | 53 lbs | .0258" (.655mm) |
| 27/250 | 415 (T400) [Tkt 7] | 6 Cord | 1,050 | 72 lbs | .0283" (.718mm) |
| 30/330 | 554 (T600) [Tkt 5] | 8 Cord | 655 | 83 lbs | .0326" (.828mm) |
Toledo Industrial Sewing Machines is the US dealer of Cowboy® brand bonded nylon and polyester thread, industrial sewing machines and heavy leather stitchers.
We usually stock bonded nylon thread in sizes 46 through 346. Call us if you need other sizes.
We stock industrial sewing machine needles in most systems, sizes and points.