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U28

U28-Medium Clear Plastic Melon-Seed Turn Button Clip

Industrial machinery

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Factory-direct pricing · EXW Yiwu

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  • Category: Picture Framing Hardware / Turn Buttons / Retainer Clips
  • MOQ: 100
  • Lead time: 7-10days
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Description

Medium Clear Plastic Melon-Seed Turn Button Clip – U28 Complete Guide

The Medium Clear Plastic Melon-Seed Turn Button Clip (SKU: U28) is the 20 mm transparent backing clip in XKY Framing’s invisible-hardware series. With a standard 3 mm hole and 1.2 mm body, it provides reliable medium-frame backing retention that remains visually unobtrusive on light or transparent mounting surfaces.

As frame sizes grow beyond 30 × 40 cm, backing clips become more visible from oblique viewing angles. The U28 Medium Clear Plastic Melon-Seed Turn Button Clip’s optical clarity ensures it remains inconspicuous even at close inspection distances, making it the hardware of choice for high-end transparent and light-toned frame assemblies.

Total length: 20 mm. Head width: 6 mm. Tail width: 6 mm. Hole diameter: 3 mm. Thickness: 1.2 mm.

Pre-drill 3 mm hole. Seat backing. Align clip. Fasten with M3 × 8 mm panhead screw. Rotate to lock. Clear body becomes nearly invisible against white or acrylic backing.

For small clear see U27 Small Clear Plastic Melon-Seed Turn Button Clip . For large clear see U29 Large Clear Plastic Melon-Seed Turn Button Clip .

Clear polycarbonate/ABS, 1.2 mm body thickness.

Application Scenarios

U28-Medium 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 U28-Medium 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: 20 mm
  • Width (Head): 6 mm
  • Width (Tail): 6 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 — U28-Medium 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 U28-Medium 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 U28-Medium 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

SKUU28
Product Typehardware
MOQ100
Lead Time7-10days
Overview<p>The U28 Medium Clear Plastic Melon-Seed Turn Button Clip extends the transparent clip series to 20 mm, providing invisible backing retention for medium-sized frameless displays, acrylic frames, and light-toned picture frames.</p>
Custom PackagingYes
MaterialPlastic (Clear ABS/Polycarbonate)
ColorClear / Transparent
Total Length20 mm
Width (Head)6 mm
Width (Tail)6 mm
Hole Diameter3 mm
Thickness1.2 mm
Arch HeightN/A
Size GradeMedium
ShapeMelon-Seed
Key specs
—11

FAQ

How does U28 differ from U27?

U28 is 4 mm longer (20 mm vs 16 mm), has a 3 mm hole versus U27's 2.5 mm, and is slightly thinner at 1.2 mm versus U27's 1.5 mm.

What is the best screw for U28's 3 mm hole?

A standard M3 × 8 mm panhead screw provides the best combination of engagement depth and minimal head visibility.

Can U28 be stained or painted?

Yes. Standard acrylic or polycarbonate spray paint adheres well, allowing colour-matching to any backing board colour.

Can this machine be customized?

Yes. U28 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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Resources

CECertified machinery
2004Manufacturing since
50+Export markets served

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