What is the tensile strength? (don't reply if you don't know. "lots & lots" "heap plenty" and "pretty strong" are not answers.)

It’s a heap of plenty lots of strong! Buy it!

will this work in sewing machines?

Yes, it does. I use it on my Brother PQ 1500sl. You will need to increase the tension because it is thicker than regular thread. I use a size 18 Schmetz leather needle or the Hlx5 needle recommended for my machine.

How about telling us what Tex size the thread is? Thanks.

I compared this thread with small industrial spools and the closest match would be a 69 (tex70) .009 by dial caliper. Similar to jeans, jacket or vehicle upholstery thread. Most home machines should be able to handle this with the right needle. Works perfect for hand stitched repairs.

Would this be good thread to use for backpack repair? I carry a lot of books with me.

Yes it definitely would be.I used it to repair my sofa which gets a lot of use.The sofa material will give way before the the thread does.

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COATS & CLARK Extra Strong Upholstery Thread, 150-Yard, Black (S964-0900)

COATS & CLARK Extra Strong Upholstery Thread, 150-Yard, Black (S964-0900)

Product ID: 6831534

Details

Brand
Coats & Clark
Color
Black Chona
Compatible Knitting Needle Metric Size
12 millimeters
Compatible Knitting Needle US Size
18
Global Trade Identification Number
Item Length
137 meters

💪3-ply bonded nylon for extra strength

🧵150 yards of premium thread

☀️UV & weather resistant durability

€ 12.19

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Description

🧵 Sew Strong, Stay Stylish – Thread That Works as Hard as You Do!

VERSATILE COLOR OPTIONS - Available in multiple sophisticated shades to match any design aesthetic and elevate your craft.
LONG LASTING PERFORMANCE - 150 yards of premium thread ensures you never run out mid-project, keeping your creative flow uninterrupted.
WEATHERPROOF YOUR CREATIONS - UV and weather-resistant properties protect your work from fading and wear, indoors or out.
SEAMLESS MACHINE HAND SEWING - Optimized for use with size 18 needles and adjustable stitch length for flawless results every time.
UNMATCHED STRENGTH FOR HEAVYWEIGHT FABRICS - Bonded 3-ply nylon thread engineered to withstand abrasion and stress, perfect for upholstery and outdoor projects.

COATS & CLARK Extra Strong Upholstery Thread is a heavyweight, 100% nylon, bonded 3-ply thread designed for both machine and hand sewing of indoor and outdoor heavyweight fabrics. With 150 yards per spool, it offers superior abrasion, weather, and UV resistance, making it ideal for durable upholstery projects. Compatible with size 18 needles, this thread ensures professional-grade stitching and long-lasting results.

Specifications

ASIN	B004BP43JE
Best Sellers Rank	#16,648 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #165 in Sewing Thread
Brand Name	Coats & Clark
Color	Black, Chona Brown, Green Linen, Soldier Blue, White
Compatible Crochet Hook Metric Size	12 millimeters
Compatible Crochet Hook US Size	L-10
Compatible Knitting Needle Metric Size	12 millimeters
Compatible Knitting Needle US Size	18
Customer Reviews	4.7 4.7 out of 5 stars (8,306)
Global Trade Identification Number	00073650797408
Item Length	137 meters
Item Weight	18.14 g
Manufacturer	Vista Partners Inc.
Manufacturer Part Number	26527
Material Composition	Nylon 100
Material Type	Nylon
Model Number	26527
Number of Packs	1
UPC	073650797408
Unit Count	450 Feet

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€ 12.19

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

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TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

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