
U29
U29-Large Clear Plastic Melon-Seed Turn Button Clip

Industrial machinery
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Factory-direct pricing · EXW Yiwu
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Large Clear Plastic Melon-Seed Turn Button Clip – U29 Complete Guide
The Large Clear Plastic Melon-Seed Turn Button Clip (SKU: U29) is the largest transparent fastener in XKY Framing’s invisible hardware range. At 21 mm length with a 1.5 mm thick body and 8.5 mm wide tail, it delivers confident large-format backing retention while remaining visually transparent against any backing board colour.
Large acrylic and frameless displays are increasingly used in commercial and residential interiors. The U29 Large Clear Plastic Melon-Seed Turn Button Clip provides the mechanical integrity required for large-format backing on these displays without introducing hardware that distracts from the artwork presentation.
Total length: 21 mm. Head width: 7.5 mm. Tail width: 8.5 mm. Hole diameter: 3 mm. Thickness: 1.5 mm.
Pre-drill 3 mm hole. Seat large backing board. Align U29 clip. Fasten with M3 screw. Rotate wide 8.5 mm tail over backing edge to lock.
For medium clear see U28 Medium Clear Plastic Melon-Seed Turn Button Clip . For yellow plastic with wire see U30 Plastic Wire Turn Button Clip Yellow .
Clear polycarbonate/ABS, 1.5 mm body, optically transparent.
Application Scenarios
U29-Large Clear Plastic Melon-Seed Turn Button Clip serves gallery, retail, and e-commerce frame assembly where reliable hanging hardware, connectors, and finishing accessories determine customer satisfaction. Installers and production teams specify quantities per frame size and mounting environment (wall, easel, security fixings).
Wholesale buyers and contract framers source these parts for bulk trade packs — consistent plating, thread standards, and carton counts reduce picking errors on fast-moving SKUs. The product suits both workshop stock and export cartons bundled with finished frames.
When specifying picture framing hardware for a new product line, use this page to confirm dimensions, finish options, and factory-direct MOQ before placing a trial order with XKY Framing.
Key Specifications
Key specification data for U29-Large Clear Plastic Melon-Seed Turn Button Clip is listed for procurement and compatibility checks. Confirm carton quantities and labeling requirements when ordering for export or private-label programs.
- MOQ: 100
- Lead time: 7-10days
- Material: Plastic (Clear ABS/Polycarbonate)
- Color: Clear / Transparent
- Total Length: 21 mm
- Width (Head): 7.5 mm
- Width (Tail): 8.5 mm
- Hole Diameter: 3 mm
Engineering teams should cross-check these parameters against your existing line layout — air pressure, power supply, and throughput figures determine whether this SKU slots into an existing station or requires a standalone footprint. Request a dimensional drawing or datasheet via the quote form if your facility plan is already frozen.
OEM Customization & Support
XKY Framing manufactures hardware with OEM and private-label options: custom voltage, pneumatic hookups, tooling sets, multilingual manuals, and export crating. Importers serving North America, Europe, and Asia-Pacific can align documentation with local electrical and safety expectations during the quote stage.
Standard lead times apply to catalog configurations; larger framing lines or repeat annual programs may qualify for revised MOQ and scheduled production slots. Submit your target price band, annual volume, and destination port — U29-Large Clear Plastic Melon-Seed Turn Button Clip quotes include EXW Yiwu pricing with optional freight coordination through our logistics partners.
Quality & Factory Direct Supply
XKY Framing operates as a CE-oriented framing equipment manufacturer based in Yiwu, China, supplying workshops and OEM partners in North America, Europe, and Asia-Pacific. Each catalog SKU is supported by factory-direct communication — engineering clarifications, spare parts, and documentation without distributor layers.
Quality control for U29-Large Clear Plastic Melon-Seed Turn Button Clip follows incoming material checks, in-process inspection, and pre-shipment review with photos available on request. We align with buyers who need repeatable specifications across repeat orders, private-label cartons, or integration into a broader picture framing production line sourced from a single vendor.
Ordering & Delivery
Request a formal quotation by email or through the on-page quote form — include quantity, destination country, and any voltage or labeling requirements. XKY Framing responds with EXW unit pricing, estimated lead time, and optional FOB Ningbo/Shanghai terms for consolidated sea freight.
Hardware SKUs ship in trade inner packs and export cartons with weight and dimension labels for freight forwarder booking. First-time importers receive packing list samples and commercial invoice templates suitable for customs clearance. Repeat buyers can align annual call-off schedules once baseline quality and logistics are approved.
For U29-Large Clear Plastic Melon-Seed Turn Button Clip, trial orders and sample units are available on selected SKUs before you commit to container volumes. Ask our sales team about compatibility with your existing framing line when ordering mixed equipment and accessory SKUs in the same shipment.
Specifications
| SKU | U29 |
|---|---|
| Product Type | hardware |
| MOQ | 100 |
| Lead Time | 7-10days |
| Overview | <p>The U29 Large Clear Plastic Melon-Seed Turn Button Clip is the largest transparent clip in the series, featuring a 1.5 mm thick body and 8.5 mm wide tail for secure backing retention on large light-toned or frameless displays.</p> |
| Highlights | <p>Large Invisible Lock</p> |
| Custom Packaging | Yes |
| Material | Plastic (Clear ABS/Polycarbonate) |
| Color | Clear / Transparent |
| Total Length | 21 mm |
| Width (Head) | 7.5 mm |
| Width (Tail) | 8.5 mm |
| Hole Diameter | 3 mm |
| Thickness | 1.5 mm |
| Arch Height | N/A |
| Size Grade | Large |
| Shape | Melon-Seed |
| — | 11 |
|---|
FAQ
How does U29 compare to the black U26?
U29 and U26 share very similar dimensions (21 mm × 1.5 mm × 3 mm) but U29 is transparent (clear) while U26 is matte black ABS.
Is U29 strong enough for 60 × 80 cm frames?
Yes, when using 10+ clips evenly spaced. The 1.5 mm thick body and 8.5 mm tail provide sufficient locking force for large lightweight backing boards.
Can U29 be used with magnetic backing systems?
Yes. The non-metallic ABS body does not interfere with magnetic closure systems, making U29 compatible with magnetic shadow boxes and smart art displays.
Can this machine be customized?
Yes. U29 supports OEM customization including voltage (110V/220V/380V), pneumatic requirements, tooling, and export packaging. Share your moulding profile, daily output target, and destination market — our engineering team will confirm a factory-direct specification and lead time.
Do you provide overseas technical support?
Yes. XKY Framing provides remote commissioning guidance, spare parts supply, and video troubleshooting for hardware installations worldwide. For larger framing lines we can arrange on-site support by appointment. Contact us with your order reference for dedicated after-sales assistance.
The Range


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