Polyester Thread - Size 138 / Tex 135 / Govt. FF

Size 138 (Tex 135) polyester thread requires a commercial sewing machine and a size 125/20 to 140/22 needle.
It is a middleweight thread and makes noticible stitches. Typical uses
include auto upholstery and convertible tops, awnings, party tents, pool covers, tarpaulins, and sails.
Size 138 (Tex 135, Size FF) Polyester Thread Color Categories
Black | White | Beiges | Blues | Browns | Grays | Greens | Oranges | Purples | Reds and Pinks | Yellows |
Polyester Thread Sizes
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Size 15 - Use needle sizes 70/10 to 80/12
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Size 46 - Use needle sizes 90/14 to 100/16
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Size 69 - Use needle sizes 100/16 to 110 /18
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Size 92 - Use needle sizes 110/18 to 125/20
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Size 138 - Use needle sizes 125/20 to 140/22
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Size 207 - Use needle sizes 140/22 to 180/24
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Size 277 - Use needle sizes 180/24 to 230/26
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Size 346 - Use needle sizes 230/26 to 260/28
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Size 415 - Use needle sizes 280/28 to 330/30
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Size 554 - Use needle sizes 330/30 to 360/32