Polyester Thread Sizes

• Size 15 / Tex 16 / Govt. 00 - Ultra lightweight thread used for sewing garments and embroidering leather and fabric. Use with home and commercial sewing machines and  needle sizes 70/10 to 80/12

• Size 46 / Tex 45 / Govt. B - Lightweight thread used for sewing garments outdoor furniture and gear such as small tents Use with home and commercial sewing machines and needle sizes 90/14 to 100/16

• Size 69 / Tex 70 / Govt. E - Middleweight thread / our most popular size. Used for garments, tents, outdoor furniture, home and auto upholstery, and dog beds and collars. It is the largest sizes most home sewing machines can handle. Use needle sizes 100/16 to 110 /18

• Size 92 / Tex 90 / Govt. F - Middleweight thread used for tents, outdoor furniture and auto upholstery, dog beds and collars, sails, and sandbags. Usually requires a commercial sewing machine. Use needle sizes 110/18 to 125/20

• Size 138 / Tex 135 / Govt. FF - Middleweight thread / noticeable stitches Used for outdoor furniture and auto upholstery, convertible tops, party tents, pool covers, tarpaulins, and sails. Requires a commercial sewing machine. Use needle sizes 125/20 to 140/22

• Size 207 / Tex 210 / Govt 3-Cord - Heavyweight thread / noticeable stitches. Used for auto upholstery boat covers, awnings, tarpaulins, saddles and horse tack. Requires a commercial or heavy duty sewing machine. Use needle sizes 140/22 to 180/24

• Size 277 / Tex 270 / Govt. 4-Cord - Heavyweight thread / stitches are a focal point. Used horse saddles and tack, knife sheaths, holsters, tarpaulins, banners, and boat and pool covers. Requires a commercial or heavy duty sewing machine; popular hand stitching size. Use needle sizes 180/24 to 230/26

• Size 346 / Tex 350 / Govt. 5-Cord - Heavyweight thread / stitches are a focal point. Used for canvas tarpaulins, saddles and horse tack, shoe repair, conveyer belts, holsters and knife sheaths. Requires a heavy duty machine; popular hand stitching size. Use needle sizes 230/26 to 260/28

• Size 415 / Tex 410 / Govt. 6-Cord - Heavyweight thread / stitches are the focal point. Used for canvas, tarpaulins, survival packs, saddles, horse tack shoe repair, conveyer belts, holsters, and knife sheaths. Requires a heavy duty machine; hand sewing favorite. Use needle sizes 280/28 to 330/30

• Size 554 / Tex 600 / Govt. 8-Cord - Our heaviest size - about 1mm diameter. Used for sewing very heavy canvas and leather, tying, binding, and hanging heavy objects. Requires a heavy duty sewing machine; hand sewing favorite. Use needle sizes 330/30 to 360/32