Cord Locks and Drawstring Stoppers

What Is a Cord Lock or Drawstring Stopper?

A cord lock or drawstring stopper is an adjustable textile component used to control the movement of a cord, lace, string or compatible round elastic. When the push mechanism is released, the cord can be moved to the required position. Releasing the mechanism allows the component to apply pressure and help retain the cord.

Cord locks provide a reusable adjustment point for hood openings, waist drawstrings, bag closures, footwear lacing systems and other gathered textile applications.

A cord lock does not finish the cut end of a drawstring. Use cord ends and drawstring tips for the terminal sections. A cord lock and two cord ends may be used together in the same assembly.

Which Cord Lock Should Be Selected?

Metal and Plastic Cord-Lock Categories

Metal Cord Locks

Metal cord locks are mainly zinc-alloy models offered in different finishes and body shapes. The range may include single-hole, double-hole, round, flat, cube, ball, mine, crescent and other model-specific designs.

A metal model may be selected when the cord lock is intended to form a visible part of the product design. Component weight and surface contact should be tested on lightweight hoods, fine textiles and delicate materials.

Plastic Cord Locks

Plastic cord locks may be selected where low weight, colour choice and everyday operating convenience are priorities. The range includes single- and double-hole, elongated, flat, rounded, mine, crescent and other model structures.

A plastic body does not corrode like exposed metal, but the internal spring, operating section, polymer, colour treatment, wash temperature and intended environment must still be assessed separately.

Single-Hole and Double-Hole Cord Locks

A single-hole cord lock provides one shared passage. It is normally used with one cord. Two fine ends may be used together only where their combined compressed dimensions are compatible with the channel.

A double-hole cord lock places two cord ends in separate passages. It may help keep the ends parallel and reduce twisting on hood, waistband and bag applications.

More holes do not automatically create stronger holding performance. Grip depends on cord dimensions, surface friction, spring pressure and internal passage geometry.

Top-Push and Side-Operated Cord Locks

On a top-push cord lock, the operating button is positioned on the upper section of the body. Pressing it releases or aligns the internal passage so that the cord can be repositioned.

On a side-operated or bridge model, the operating direction and cord route vary according to the body design. Check whether the component remains easy to grip and operate in its installed orientation.

Operating comfort depends on button travel, spring pressure, cord rigidity and the way the component is held.

How to Measure Cord Compatibility

The stated opening is the nominal internal passage through which the cord travels. Two cords with the same nominal outside diameter may behave differently because of braid, filling and surface construction.

Common Cord-Entry Groups

Imperial measurements below are approximate reference conversions. Use the verified individual product dimensions for final selection.

These measurements are general selection references and do not guarantee compatibility. Manufacturing tolerance, braid, filling and surface finish can change the fit.

How Does a Cord Lock Hold the Cord?

On a spring-loaded cord lock, the cord passes through openings in the body and moving button. Releasing the button moves the openings away from full alignment, allowing the mechanism to apply pressure and restrict movement.

Holding performance depends on several factors:

• Actual cord thickness relative to the passage
• Surface-friction level
• Soft, filled, rigid or elastic cord construction
• Internal channel and spring geometry
• Direction and level of the applied pulling force
• Cord position inside single or double passages

Metal and Plastic Cord Locks Compared

A metallic colour or plated surface does not prove that the component is stainless steel or suitable for saltwater exposure.

Cord Locks and Cord Ends Are Different Components

Real-World Applications

• Hoodie, coat and jacket adjustment cords
• Tracksuit, shorts and sportswear waist drawstrings
• Bag, backpack, pouch and drawstring-sack closures
• Shoe, boot and trainer lacing systems
• Adjustment cords on hats, headwear and neck warmers
• Camping bags, sleeping bags and compatible outdoor textiles
• Curtain, cover and home-textile gathering systems
• Adjustment points using compatible round elastic

How Is a Cord Lock Installed?

1. Measure the normal and lightly compressed cord dimensions.
2. Press the operating button to align or release the cord passages.
3. Thread the cord through the correct passage and direction.
4. On a double-hole model, position the two ends in separate passages.
5. Release the button and check whether the mechanism retains the cord.
6. Pull in the actual operating direction to test slipping.
7. Where cord ends will be fitted afterwards, install them after completing the cord route.

Standard push-button cord locks are normally installed by hand and do not require a press or setting die. A separate tool may be required for any terminal cord end fitted afterwards.

Incorrect Selection and Use Warnings

• A cord that is too narrow may slip after the mechanism is released.
• A cord that is too thick may not pass through, may become damaged or may prevent complete button closure.
• Measure both width and thickness when using a flat drawstring.
• Check the compressed diameter of soft and filled cords.
• A very smooth cord may slip despite having a suitable nominal size.
• The number of holes does not determine holding strength by itself.
• A heavy metal cord lock may pull or distort lightweight fabric.
• A fitted cord end may not pass through a cord-lock channel or eyelet.
• Plastic or metal appearance alone does not confirm wash or outdoor suitability.
• Small-part and detachment risks must be assessed separately for children’s products.
• Complete a sample test with the actual cord and finished product before wholesale ordering or mass production.

Related Categories

• Cord ends, cord locks and stopper accessories
• Metal cord locks
• Plastic cord locks
• Cord ends and drawstring tips
• Cords and laces

Frequently Asked Questions About Cord Locks

Last updated: 21 July 2026

Business and brand: E-Düğme – Istanbul, Türkiye

Technical verification note: Refer to the individual product page for exact metric and imperial entry dimensions, body size, base material, finish, colour, pack quantity and mechanism structure.