Clarification on Anchor Type and Variations
This product is the standard version of the hollow wall anchor, featuring a removable cross-head (Phillips) bolt. This versatile anchor body is also available from the manufacturer with different bolt types to suit specific applications, as shown in the “Related Products” section of the webpage:
- L-Bolt (Hook Bolt): For creating a direct hanging point.
- Eye Bolt: For applications requiring a closed loop for suspension.
- Hex Head Bolt: For high-torque installation with a wrench, suitable for heavier-duty applications.
- Eye Hook Bolt: An open hook for easy hanging and removal of items.
Product Mechanism and Installation
This anchor uses a proven expansion mechanism to create a secure hold by clamping onto the back of the hollow wall material.
- Mechanism: The anchor consists of a cylindrical, slotted sleeve with an integrated flange and a pre-inserted cross semi-round head bolt. The flange has small teeth on its underside designed to bite into the wall surface, preventing the anchor from spinning during installation. When the bolt is tightened, it draws the threaded part of the sleeve towards the front, causing the slotted body to collapse and expand, forming a set of “legs” that clamp firmly against the back of the hollow wall.
- Installation Process:
- Drill a hole in the wall to the diameter specified for the anchor size.
- Gently tap the entire anchor assembly into the hole until the flange is flush with the wall surface. The anti-rotation teeth will grip the wall.
- Use a standard cross-head (Phillips) screwdriver to turn the bolt clockwise. You will feel resistance as the anchor body expands and secures itself behind the wall. Continue tightening until the anchor is firmly set.
- Key Feature: Once the anchor is set, the bolt can be completely removed to position your fixture (e.g., a TV bracket, shelf bracket). The anchor body will remain securely expanded in the wall.
- Place your fixture over the anchor and re-insert the bolt, tightening it to secure the item.
Product Parameters
| Parameter Item | Specification Description |
|---|
| Product Name | Hollow wall anchor cross semi-round head bolt |
| Brand Name | Duojia |
| Place of Origin | Hebei, China |
| Material | Carbon Steel |
| Surface Treatment | White Zinc Plated |
| Available Sizes | M6-M20 |
| Strength Grades | 4.8, 8.8, 10.9, 12.9, A2-70, A4-70, A4-80 etc. |
| Measurement System | Metric |
| Application | Heavy Industry, General Industry, Construction, Renovation |
| Certifications | ISO9001, ISO14001, ISO45001, SGS |
| Packaging Options | Small Pack + Carton + Pallet; Bag/Box with Pallet |
Key Features
- High Load Capacity: Provides a strong, dependable hold suitable for medium to heavy loads in hollow walls by distributing the weight over a large area.
- Removable Bolt: The bolt can be removed and re-inserted after the anchor is set, making it exceptionally convenient for mounting fixtures.
- Durable Construction: Made from carbon steel with a corrosion-resistant white zinc finish for longevity.
- Anti-Rotation Flange: The toothed flange prevents the anchor body from spinning in the hole during tightening, ensuring a proper and secure set.
- Standard Drive: The cross semi-round head is compatible with standard Phillips screwdrivers, making installation easy with common household tools.
Common Applications
This anchor is the ideal choice for securely fastening a wide variety of items to hollow walls.
- Mounting flat-screen TV brackets.
- Securing heavy shelving, bookcases, and cabinets.
- Installing radiators and towel warmers.
- Hanging heavy mirrors, large picture frames, and artwork.
- Installing grab bars and handrails in bathrooms.
- Securing curtain rods and heavy drapes.
