40 mm / 1.575 in Plastic Rectangular Strap Adjuster AL005510

Plastic Rectangular Strap Adjuster

This plastic rectangular strap adjuster is designed to help control the usable length of webbing on bags, backpacks, sports bags, travel products, workwear and textile accessories. It is a one-piece adjusting component rather than an opening and closing buckle.

The product belongs to the 40 mm / 1.575 in size class and should be evaluated for webbing and straps measuring approximately 40 mm / 1.575 in wide. The rectangular structure allows the strap to be threaded around the centre section and retained at the selected length.

When Should This Adjuster Be Selected?

• When approximately 40 mm / 1.575 in webbing is used,
• When the length of a bag or backpack strap must be adjustable,
• When a lightweight plastic component is preferred to a metal adjuster,
• When the strap must be shortened or extended for the user,
• When strap adjustment is required without an opening and closing mechanism.

Technical Specifications

What Does This Product Do?

The adjuster helps shorten or extend the usable section of a strap. The webbing is threaded through the openings and around the centre section so that the selected length can be retained during use.

This product is not a side-release buckle and does not connect two strap ends with a quick opening mechanism. If opening and closing functionality is required, a compatible plastic side-release buckle must be selected separately.

Understanding the 40 mm / 1.575 in Size

The product should be evaluated for straps measuring approximately 40 mm / 1.575 in wide. Width alone does not confirm compatibility. Strap thickness, stiffness, edge construction, weave density and surface friction can change the way the webbing passes through and holds inside the adjuster.

How Is the Strap Threaded?

1. Pass the strap end through the first opening.
2. Guide it around the centre adjusting section.
3. Return the strap through the second opening.
4. Make sure the webbing is flat and is not trapped against the edges.
5. Set the required length and test adjustment and holding performance.

The exact threading direction may vary according to the construction of the finished strap system. Complete a sample installation before production.

Applications

• Bag shoulder straps
• Backpacks and school bags
• Sports and travel bags
• Textile accessories
• Workwear and aprons
• Outdoor textile products
• Handmade bag projects
• Adjustable webbing systems

Difference From Similar Components

This model is a one-piece plastic adjuster for the 40 mm / 1.575 in strap class. It provides a lighter alternative to metal rectangular adjusters. Unlike a swivel hook, it does not attach a strap to a ring. Unlike a side-release buckle, it does not create a quick opening and closing point.

For narrower straps, select an adjuster from the corresponding 20 mm / 0.787 in, 25 mm / 0.984 in or 30 mm / 1.181 in size class. These sizes should not be treated as interchangeable.

Related Products

• 40 mm / 1.575 in Plastic Swivel Bag Hook AL005551
• 40 mm / 1.575 in Plastic Ladder-Lock Strap Adjuster H009021
• 40 mm / 1.575 in Curved Plastic Ladder-Lock Adjuster AK0004
• Bag Buckles, Rings and Hooks

When several components are used in the same strap system, check the strap passage of each adjuster, hook, ring and buckle separately.

Frequently Asked Questions

Which strap width is this adjuster designed 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.

Is this a side-release buckle?

No. It is a one-piece rectangular adjuster used to control strap length.

Can it be used on a bag strap?

Yes. It can be used on compatible bag, backpack and sports bag straps.

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 strap included?

No. The strap, hook, ring and other attachment components are not included.

Does strap thickness affect compatibility?

Yes. Thickness, stiffness, weave and surface friction may affect threading and holding performance.

Should it be tested before production?

Yes. Test the adjuster with the actual webbing for threading, adjustment, slippage and expected use conditions.