Black Square Clip WPC Decking Hidden Fastener for Composite Deck Board Joining
Black Square Clip - Hidden Fastener for Deck Boards
This black square clip is a hidden fastener for joining WPC deck boards. Its square body holds the board gap even and locks each board to the joist, keeping the deck surface clean with no visible screws. It is part of the HS decking accessory range.
Key Specifications
| Product Type | Decking Square Clip (hidden fastener) |
| Material | Plastic / nylon |
| Function | Joins and spaces deck boards over joists |
| Finish | Black |
| Compatibility | Standard grooved WPC decking profiles |
| Model | HS-DA-SC |
Why Choose This Fastener
- Square body holds a consistent board gap for drainage and expansion
- Locks boards to the joist for a firm, quiet deck surface
- Hidden fixing keeps the surface clean, with no visible screws
- Corrosion-resistant and UV stable for long outdoor life
Performance Highlights
- Corrosion-resistant for long outdoor service life
- Weather and UV stable, so parts keep their fit and finish
- Consistent dimensions for reliable, repeatable installation
- Compatible with standard WPC decking profiles
Material & Durability
Engineering-grade plastic / nylon. Parts are produced for outdoor decking use, where damp ground, rain and sun are the norm, so they are specified to resist corrosion, brittleness and loss of holding power over time.
Installation
Placed between two boards over a joist and fastened with a stainless-steel screw; the square body sets the board gap.
Quality Assurance & Testing
Each production batch is checked for dimensional tolerance, strength and finish before shipment. Parts are produced to CE and RoHS requirements, and third-party inspection is welcome before shipment.
Manufacturing & Export Experience
Supplied by HS, a WPC decking and accessory producer based in Chengdu, Sichuan, China, with more than 18 years of composite decking experience. Our export team supports OEM/ODM branding, project take-offs and combined container loading for overseas buyers.
Applications
Joining and spacing composite deck boards on patios, terraces, balconies and boardwalks.
Customization & Ordering
- OEM/ODM packaging and custom branding available for volume orders
- Complete accessory list and installation guidance provided with each order
- Project quantities and combined container loading supported
Contact our export team for a quotation, free samples or a technical data sheet for your project.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.