Clarification on Anchor Type and Design
This fastener is a type of hollow wall anchor. Its design features a hollow plastic expansion sleeve with pre-cut slots and an internal thread. When a screw is inserted and tightened, the sleeve is designed to collapse and expand behind the drywall, creating a broad contact area that distributes the load and provides a secure grip.
Important Clarification on Product Parameters:
It is critical to note that the product parameters listed on the source page contain significant inaccuracies that are inconsistent with the nature of a plastic drywall anchor.
- Grade: The listed strength grades (e.g., 4.8, 8.8, 10.9) are standards for the mechanical properties of steel bolts and are entirely inapplicable to plastic anchors. The holding strength of this anchor is determined by its design, the quality of the plastic, and the integrity of the drywall, not by a steel grade.
- Application: The application listed as “Heavy Industry” is incorrect. As confirmed by the product’s own introductory text, these anchors are for “low to medium load applications” with a typical capacity of up to 15kg. They are not suitable for heavy industrial or structural loads.
- Size: The general “Size” range of M6-M20 is a generic placeholder and is inaccurate for this specific product. The detailed sizing table correctly indicates it is designed for small screws with a diameter of 3mm to 3.5mm.
- Dimensional Table: The column labeled “Recommend Hole Size” with a value of “40” is likely a typographical error and should be interpreted as “Recommended Hole Depth (mm)”, as it logically follows the anchor’s length of 34mm.
Product Mechanism and Installation
The anchor functions by expanding behind the hollow wall material to create a secure, load-bearing brace.
- Installation Process:
- Drill the Hole: Using a 10mm drill bit, drill a hole in the drywall ceiling.
- Clean the Hole: Remove any dust and debris from the hole.
- Insert the Anchor: Push the plastic expansion anchor into the hole until its collar is flush with the ceiling surface.
- Fasten the Object: Place your fixture (e.g., a light fixture base) over the anchor and drive the appropriate screw (3mm to 3.5mm diameter) into the anchor’s core using a Phillips screwdriver.
- Set the Anchor: As the screw tightens, it will pull the back of the anchor, causing the slotted sleeve to expand and grip the inside of the drywall tightly. Do not over-tighten, as this can damage the drywall or the anchor.
Product Parameters
| Parameter Item | Specification Description |
|---|
| Product Name | Ceiling Anchor YJT 1040 |
| Brand Name | Duojia |
| Place of Origin | Hebei, China |
| Material | Plastic (High-Quality Nylon or Polypropylene) |
| Surface Treatment | Plain (Natural plastic finish) |
| Grade | Not Applicable (Steel grades do not apply to plastic anchors) |
| Measurement System | Metric |
| Application | Light to Medium-Duty Fastening in Drywall/Gypsum Board Ceilings |
| Certifications | ISO9001, ISO14001, ISO45001, SGS |
| Packaging Options | Small Pack+Carton+Pallet; Bag/Box with Pallet |
Dimensional and Sizing Information (YJT 1040 Standard)
| Nominal Diameter (D) | Anchor Length (L) | Required Drill Bit Size | Recommended Hole Depth | Recommended Screw Diameter |
|---|
| 10 mm | 34 mm | 10 mm | 40 mm | 3 mm – 3.5 mm |
Key Features
- Drywall-Specific Design: Engineered to expand behind the board, providing a secure hold without causing cracks or damage.
- Reliable Expansion Mechanism: The slotted sleeve creates a wide brace on the blind side of the wall for excellent pull-out resistance in hollow materials.
- Corrosion-Proof Material: Made from durable nylon or polypropylene, the anchor is resistant to moisture and aging, ensuring a long service life.
- Light to Medium-Duty Capacity: Ideal for loads up to approximately 15kg, perfect for common ceiling-mounted items.
- Standard Compliant: Manufactured according to the YJT 1040 standard for consistent performance.
Common Applications
- Mounting lightweight lighting fixtures.
- Hanging smoke detectors and carbon monoxide detectors.
- Securing decorative items, such as mobiles or small hanging plants.
- Installing cable management systems and routing wires.
- Supporting small shelving units or displays.
