Plastic Rectangular Webbing Adjuster
This plastic rectangular adjuster is used to control the length of webbing fitted to bags and textile products. The strap is routed through the openings and around the centre section, allowing the usable length to be shortened or extended.
The product belongs to the 40 mm / 1.575 in size class and should be evaluated for webbing measuring approximately 40 mm / 1.575 in wide. Its lightweight plastic construction makes it suitable for adjustable bag straps and similar textile applications.
When Is This Adjuster a Suitable Choice?
- When approximately 40 mm / 1.575 in webbing is used,
- When the length of a shoulder strap must be adjustable,
- When a lightweight plastic alternative to metal hardware is required,
- When a backpack or sports bag strap must be shortened or extended,
- When adjustment is required without a quick-release mechanism.
Product Specifications
| Product code |
AL005510 |
| Product type |
Plastic rectangular webbing adjuster |
| Size class |
40 mm / 1.575 in |
| Compatible webbing class |
Approximately 40 mm / 1.575 in |
| Material |
Plastic |
| Construction |
One piece |
| Primary function |
Adjusting and retaining strap length |
| Package scope |
Plastic adjuster only |
Function Within a Strap Assembly
The rectangular adjuster changes the usable length of a strap. Correctly routed webbing can be shortened, extended and retained at the required adjustment point.
This component is not a side-release buckle. It does not connect two strap ends with a quick opening and closing action. A compatible side-release buckle must be selected separately when that function is required.
Understanding the Size
The 40 mm / 1.575 in description identifies the approximate webbing class for which the product should be evaluated. A matching nominal width alone does not guarantee complete compatibility.
Webbing thickness, stiffness, edge construction, weave density and surface friction can affect how easily the strap passes through the adjuster and how securely the selected length is retained.
Compatibility warning: Test threading, adjustment, slippage and holding performance with the actual webbing before beginning production.
Basic Threading Check
- Pass the webbing end through the first opening.
- Guide it around the centre adjustment section.
- Return the webbing through the second opening.
- Make sure the strap remains flat and is not trapped against an edge.
- Set the required length and test adjustment and holding performance.
The exact threading direction can vary according to the construction of the completed strap assembly. Prepare and test a sample before production.
Applications
- Shoulder bags
- Backpacks and school bags
- Sports bags
- Travel bags
- Workwear and apron straps
- Outdoor textile products
- Handmade bag projects
- Adjustable webbing assemblies
Avoiding Incorrect Selection
- Do not use this adjuster as a quick-release buckle.
- Do not assume that every strap sold as 40 mm / 1.575 in will provide identical performance.
- Do not force wider or excessively thick webbing through the openings.
- Do not begin volume production without testing the actual webbing.
- Do not state a load capacity unless it has been verified for the product and finished assembly.
Related Products
If the finished strap system includes a hook, ring, side-release buckle or second adjuster, check the webbing passage of every component separately.
Frequently Asked Questions
Which webbing width is this adjuster intended for?
It belongs to the 40 mm / 1.575 in size class and should be evaluated for webbing measuring approximately 40 mm / 1.575 in wide.
Is the product plastic or metal?
It is made of plastic. No additional plastic specification should be stated unless verified.
Does this product open and close?
No. It is a one-piece webbing adjuster and does not have a quick-release mechanism.
Can it be used on backpack straps?
Yes. It can be used when the backpack webbing width, thickness and construction are compatible.
Can it be used with 30 mm / 1.181 in webbing?
It is not recommended. Narrower webbing may not provide suitable adjustment and holding performance.
Is the webbing included?
No. Webbing, hooks, rings and other attachment components are not included.
Is a machine required for installation?
No machine is required to thread the adjuster. Sewing or end retention may be required according to the design of the finished product.
Should the adjuster be tested before production?
Yes. Test threading, adjustment, slippage and expected use conditions with the actual webbing.