Maxi-Lock logo

The Industry Standard in Serger Thread


"When researching threads for our new serger and coverstitch machine, Maxi-Lock® was the clear choice for quality and value."

Weeks Ringle
Modern Quilt Studio
maxi-lock thread brand large maxi-lock thread brand small


Maxi-Lock® with its three distinctive collections - All Purpose, Swirls® and Stretch® - is specifically designed to cover all your serger needs.


Proudly processed for more than 30 years in North Carolina, U.S.A.





maxi-lock serger thread all purpose

Weight: 50

Fiber Content: Spun Polyester

Yardage: Cone (3000 yds and 6000 yds)

Shades: 76 colors

Recommended Needle Size: 75/10

Uses: Garment construction and hemming applications, suit jackets, curtains, pillows, bedding, blankets, and table linens.

Benefits: Excellent seam strength, consistent sewability, mildew and UV light tolerant, shrink and abrasion resistant.

maxi-lock serger thread swirls

Weight: 50

Fiber Content: Spun Polyester

Yardage: Cone (3000 yds)

Shades: 18 colors

Recommended Needle Size: 75/10

Uses: Heirloom dresses and lingerie, jackets, skirts, home décor, napkins, pillows, long arm and machine quilting, textured surface effects, couching, and appliqué.

Benefits: Excellent seam strength, consistent sewability, mildew and UV light tolerant, shrink and abrasion resistant, Color Fast.

maxi-lock serger thread stretch

Weight: 50

Fiber Content: Textured Nylon

Yardage: Cone (2000 yds)

Shades: 36 colors matching the All Purpose top sellers

Recommended Needle Size: 75/10

Uses:Lingerie, swimwear, fitness apparel, undergarments, sportswear, home décor, and knitted projects.

Benefits: Smooth, flat seams, soft to the touch, great stretch and recovery, iron-safe.


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