420D/3 1500M High Tenacity Polyester Sewing Thread

High Tenacity Sewing Thread

420D/3 High Tenacity Polyester Sewing Thread

Material:	100% polyester filament
Count:	420D/3
Length:	1500m/cone
Feature:	UV Resistant
Color:	Color Card Available
Packaging:	10spools/box, 8boxes/ctn
MOQ:	MOQ: 360 cones/color MOA: 3000 dollars (no restriction on the types of products) Note for High Market Share Regions: West African: 5000 dollars
Certification:	OEKO-TEX® CERTIFIED $oeko$

Lead Time: 25-35 days
Shipping: Sea freight, Railway freight
Payment: T/T, L/C ...

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MH Sewing Thread Factory

150,000m²
Plant Area
3000 tons
Monthly Production
1,000+
Workers

View More About MH Industrial

About Ningbo MH

MH specializes in garment accessories and fabrics, offering high-quality solutions for the textile and home décor industries. With advanced automated warehousing, MH ensures efficient supply chain management and provides comprehensive after-sales support, exclusively serving businesses, not individuals.

View More About MH Company

1999
Since
$871Million
Annual Sales
40+
Branch Offices
600+
Staffs

Product Details

MH 420D/3 high tenacity polyester sewing thread is a three-ply filament thread built for the heaviest stitching in the high tenacity polyester range. The 420D/3 construction is the coarsest ply in this line, giving it the tensile strength needed for extreme load-bearing seams.

This suits MH 420D/3 thread to long-life outdoor work such as awnings, sun shades, boat sails, and tents, as well as heavy-duty items like reinforced luggage, tarpaulins, safety harnesses, and automotive upholstery.

Key Selling Points

Coarsest high-tenacity ply: The 420D/3 build is the heaviest three-ply option in MH's high tenacity polyester range, delivering load-bearing seams that resist thread breakage under sustained tension.
UV-resistant for outdoor life: The UV-resistant polyester construction helps the thread hold up under long-term sun exposure, reducing the risk of seams failing on awnings, sails, and outdoor gear.
Heavy-duty machine performance: As a high tenacity filament thread, it stands up to the friction and heat of high-speed industrial sewing through thick, tough materials.
Custom color matching: MH supplies the thread in raw white, black, and custom shades matched to a color card for brand-consistent finished goods.
OEKO-TEX certified production: The high tenacity sewing thread is produced to OEKO-TEX standards, supporting buyers with textile compliance requirements.
Reliable factory supply: As a China manufacturer, MH offers dependable bulk supply plus OEM and ODM support for the 420D/3 thread.

100% Polyester high tenacity thread has certain tensile force, luster, complete color, excellent color fastness, resist high temperature, high tensile strength, a combination of beautiful appearance with practicality.

Polyester filament sewing thread is made from continuous filament high tenacity lubricated polyester sewing thread. It has high UV resistance properties making it an excellent thread for outdoor use.

Specifications Reference Technical Data

Denier	PLY	Tex (T)	Tickets Size	Average Strength (kg)	Elongation Min-Max (%)	Recommended Needle Size		Application
Denier	PLY	Tex (T)	Tickets Size	Average Strength (kg)	Elongation Min-Max (%)	Singer	Metric	Application
100D	3	35	80	≥ 2.0	15-21	9~11	65~75	Light Weight
150D	2	35	80	≥ 2.0	15-21	9~11	65~75	Light Weight
150D	3	50	60	≥ 3.0	16-22	10~12	70~80	Medium Weight
210D	2	50	60	≥ 2.8	16-22	10~12	70~80	Medium Weight
210D	3	70	40	≥ 4.2	17-23	13~16	85~100	Medium Weight
250D	3	80	30	≥ 5.0	18-23	16~19	100~120	Heavy Weight
420D	3	135	20	≥ 8.4	18-24	18~21	110~130	Extra Heavy Weight

Washing Color Fastness:

Temper Ature (°C)	Time (min)	ECE Detergent (g/l)	Liquor Volume (ml)	Sodium Perborate (g/l)	Steel Balls (pcs)	Colour Change / Staining
50	30	4	150	1	25	Grade 4

Customization Services

Color Customization

download the high tenacity sewing thread color chart

Material Customization

MH High Tenacity Sewing Thread featuring both nylon and polyester options to meet different application needs.

Yarn Count Customization

MH High Tenacity Sewing Thread is available in a wide range of customizable yarn counts to meet diverse strength and application requirements.

Logo+Packaging Customization

Support ODM/OEM Customization

MH High Tenacity Sewing Thread offers customizable logo and packaging solutions. With our OEM/ODM services, you can align your products with your brand identity and meet specific market demands.

Usage(for leather sewing)

Used for formal tailoring, quilting, footwear, leather goods, bedding mattress, bind stitching, upholstery, industrial products.

Other Thread Products

We offer additional polyester thread options: corespun polyester sewing thread, high tenacity polyester sewing thread, cotton sewing thread, bag closing thread, recycled sewing thread, anti-UV sewing thread, waterproof sewing thread, fire-retardant sewing thread, High extension flex sewing thread, water soluble sewing thread, sewing thread sets.