50 mm Plastic Ladder Lock Backpack Strap Adjuster AL005514-A

50 mm Plastic Ladder Lock Buckle for Backpack Straps

This plastic ladder lock is a webbing adjuster for nominal 50 mm (1.97 in) straps. It is intended for length adjustment on backpacks, carry bags and textile strap systems, rather than for opening and closing a two-piece buckle. Its horizontal bars guide the webbing through multiple slots. Measure both the actual strap width and its thickness before selecting an adjuster, particularly when using dense or stiff woven webbing.

Measurements and Plastic Construction

The supplied product diagrams show a nominal 50 mm (1.97 in) webbing passage, approximately 62 mm (2.44 in) external width and 67 mm (2.64 in) external height. These are reference dimensions from the supplied images, not independently established manufacturing tolerances. The black plastic body has a broad upper section and horizontal strap-routing bars. A 50 mm specification refers to the intended webbing width, not the overall buckle width.

Webbing Fit and Adjustment

Thread the webbing through the slots in the configuration required by the strap design. Straps narrower than the nominal width can move sideways; thick or stiff webbing can be difficult to pass through the openings. Test the adjustment with the exact webbing material before ordering for production. Friction, strap weave, thickness and routing all affect performance. This is a length-adjustment component; it is not a quick-release side buckle or a stand-alone safety device.

Typical Bag and Textile Applications

The shape can be appropriate for adjustable backpack shoulder straps, sports-bag carrying straps, fabric bags, travel accessories and other textile webbing assemblies. The complete assembly determines how the adjustment works. The buckle alone does not establish a safe carrying capacity. Where substantial loads or safety requirements apply, test the finished strap assembly for the actual environment and expected stress. No independently verified load rating or certification has been provided.

Choosing Between a Ladder Lock and a Release Buckle

A two-part side-release buckle is designed to connect and disconnect strap ends. A ladder lock adjuster instead helps change strap length. Projects needing both closure and adjustment may need separate hardware. Even when both components accept nominal 50 mm webbing, this does not make them mechanically interchangeable. Confirm the intended purpose before choosing accessories.

Colors, Quantities and Ordering

Black and white color options are listed. The black variant is stocked, while the white variant currently has zero inventory. All supplied item photographs show the black version. Minimum purchase is 100 pieces, and the product uses separate quantity-price tiers for larger orders. Webbing and bags appearing in lifestyle pictures illustrate possible applications and are not included with the buckle.

Checks Before Production

Measure actual webbing width after cutting, determine thickness at stitched or folded sections, and verify that the webbing threads without damage. Assemble and test a physical sample using the intended routing and tension. An apparent size match is not proof of performance with every woven strap. Review the application whenever friction, outdoor exposure or frequent adjustment is expected.

Frequently Asked Questions

Which strap width does this fit?

It is intended for nominal 50 mm (1.97 in) woven webbing.

Is it a side-release buckle?

No, this is a strap-length ladder lock adjuster.

What are its exterior dimensions?

Approximately 62 mm (2.44 in) wide and 67 mm (2.64 in) high in the supplied drawing.

Can it be used on a backpack?

Yes, provided fit and intended loading are checked on a sample assembly.

Are both colors available?

Black is stocked and white currently has no stock.

What is the minimum order quantity?

100 pieces.

Is webbing included?

No, the buckle is the sold component; photographed straps and bags are not included.