Handbag and Backpack Strap Slider in Custom Sizes
A zinc alloy tri-glide quoted at 19 mm as standard and produced at 25 mm, 32 mm, 38 mm and 50 mm as well. This is the everyday adjuster for backpack shoulder straps, where the same shape has to be available at four widths so one harness reads as a set. Minimum 1,000 pieces, mixable at 500 pieces per colour.
The backpack harness slider, stocked as a size family so a whole harness uses one shape.
| Size | 19 mm( 25 mm/32 mm/38 mm/50 mm, custom sizes available) |
|---|---|
| Material | Zinc alloy |
| Finishes | Rainbow/Gold/Rose Gold/Nickel/Gunmetal/Antique Brass and others |
| Typical Use | Dog Collar, Purse, Wallet, Bag, Backpack, Belt, and others |
| Minimum Order | 1000 pcs(can mix two colors, 500 pcs/color) |
| Sampling Time | 1 to 3 days |
Problems It Solves
- A slider with too smooth a bar lets webbing creep, so the strap drops during wear
- A sharp inner edge cuts polyester webbing at the fold after a season of adjustment
- Inner width tolerance that is 1 mm generous makes a 25 mm strap wander sideways
Key Benefits
- Centre bar profile that grips webbing under load without abrading it
- Inner width cast to the nominal webbing size so the strap sits square
- Same plating batch as the hooks and rings in your bill of materials
Application Scenarios
- Adjustable shoulder straps on totes and crossbody bags
- Backpack shoulder and sternum strap adjustment
- Belt and apparel strap adjustment on fashion pieces
- Dog harness sizing adjustment
Who It Is For
- Bag factories buying strap hardware in matched size sets
- Webbing and strap converters selling assembled straps
- Brands that need one slider shape across several strap widths
How This Part Is Produced
Six steps inside one factory, from the mould to the packed carton.
Technical Features
- Die cast zinc alloy or stamped iron depending on the width and the price point
- Centre bar either fixed as part of the casting or fitted as a moving bar
- Polished corners so the part does not abrade webbing at the turn
Quality Control
- Incoming zinc, brass, iron and stainless material checked against the grade ordered
- First article from each mould compared with the approved sample before the run starts
- Dimensional check on inner width and thickness during casting and stamping
- Plating thickness and colour compared against the approved colour plate
- Spring and swivel action tested by hand on hooks, snaps and side release buckles
- Counted, bagged and cartoned with the order's own packing list
Customisation Options
- Size or inner width changed on an existing catalogue style with no mould fee
- Finish chosen from nickel, gunmetal, black nickel, gold, light gold, rose gold, antique brass and rainbow
- Logo etched or embossed where the part has a flat large enough to carry it
- Painted or enamel colour where a plated metal tone will not match the brand colour
- Free 3D design from a photo or a physical sample if you have no drawing
The factory states that this item is produced as an eco-friendly part to ISO 9001, SGS and RoHS requirements. We do not hold a certificate scan for this specific SKU on the website, so ask for the current certificates by email or WhatsApp before you place a compliance-critical order.
Photographs of This Item
Every image is a photograph of the part itself, taken from the manufacturer's own product record rather than a rendering.
Use Guide
- Order the slider by inner width and match it to the webbing width exactly
- Thread the webbing over the centre bar and back under itself so the load locks the bar
- For slippery nylon webbing choose the moving bar version rather than a fixed tri-glide
| Compared with | What changes |
|---|---|
| Moving bar slider | A moving bar grips slippery webbing better, while a fixed tri-glide is slimmer and cheaper |
| Plastic tri-glide | Plastic is lighter and free of plating risk but cannot deliver a metal finish on a fashion strap |
| Welded wire slider | Welded wire is stronger in thin sections but shows the weld and is hard to plate evenly |
Related Reading
Industries
Solutions
Other Items in Strap Sliders
Questions About This Item
Sizing, finish, minimum order and lead time on this part.
How Do I Stop Webbing Slipping Through the Slider
Use the moving bar version, or specify a slightly tighter inner width so the doubled webbing has to compress slightly to pass.
Can One Slider Design Cover Several Strap Widths
Yes. Most catalogue slider shapes are cast in a size ladder, so the same look runs from 19 mm up to 50 mm.
Ask for a Sample of the Handbag and Backpack Strap Slider in Custom Sizes
Stock samples are free and you pay only the courier. Sampling time is 1 to 3 days, and we will confirm the MOQ and the plated finish in writing before production.