M4/M5/M6 Hollow Wall Anchors

M4/M5/M6 Hollow Wall Anchors — Secure Fixing on Thin Panels (25/50/100 PCS)

Strong Anchors for Thin & Hollow Walls
Designed for secure installations in materials like drywall, gypsum board, hollow doors, aluminum panels, and thin steel sheets, these expansion anchors feature a spreading sleeve that grips behind the surface for a tight hold.

Why It’s a Great Choice
- Multiple Sizes Available: Choose from M4, M5, or M6 to match your mounting needs.
- Solid Grip on Thin Sheets: Expands behind 0–5 mm (0–0.20 in) panels without surface damage.
- Anti-Rust Performance: Zinc-coated steel resists corrosion for long-lasting durability.
- Neat, Flush Finish: Phillips truss head design sits flat and clean once installed.
- DIY Friendly: Install using common tools—drill, tighten to expand, and secure your fixture.
- Widely Applicable: Great for picture frames, curtain rods, cabinets, signage, and more.

How to Install
- Drill a hole (size based on anchor model — see table below).
- Insert the anchor flush with the wall surface.
- Pre-tighten the screw to expand the sleeve, then remove it.
- Position your object, reinsert screw, and fully tighten.
Tip: For best results, avoid over-tightening and maintain at least 10–15 mm spacing from edges.

Specifications
Model | Thread Size | Drill Hole | Anchor Length | Head Diameter | Panel Thickness |
---|---|---|---|---|---|
M4 | M4 (≈ 0.16 in) | 8 mm (0.31 in) | 20 mm (0.79 in) | 10 mm (0.39 in) | 0–5 mm (0–0.20 in) |
M5 | M5 (≈ 0.20 in) | 10 mm (0.39 in) | 23 mm (0.91 in) | 11 mm (0.43 in) | 0–5 mm (0–0.20 in) |
M6 | M6 (≈ 0.24 in) | 12 mm (0.47 in) | 25 mm (0.98 in) | 12 mm (0.47 in) | 0–5 mm (0–0.20 in) |
Available Quantities
- 25 PCS
- 50 PCS
- 100 PCS
Package Contents
- Hollow wall anchors (M4 / M5 / M6) with screws × 25 / 50 / 100 (based on selection)
- Instruction sheet
- (Optional bundle) 8 / 10 / 12 mm drill bit or setting tool

Usage Scenarios
Securely mount curtain rails, towel holders, floating shelves, electrical boxes, or decor on thin panels—without worry of damage or instability.

FAQ
Q: Can I use these in plasterboard?
A: Yes, they’re made for hollow surfaces like plasterboard, drywall, and sheet panels 0–5 mm thick.
Q: Which drill bit size do I need?
A: M4 = 8 mm, M5 = 10 mm, M6 = 12 mm. Match the bit to the anchor model.
Q: Are these anchors reusable?
A: The screw is reusable. Once expanded, the metal sleeve stays in the wall and is not designed to be reused.
Q: Can they hold heavy items?
A: Yes, within the panel’s capacity. For heavy objects, use multiple anchors and install as directed.
Q: Are they suitable for solid concrete?
A: No. These are only for hollow or thin surfaces. Use masonry anchors for solid concrete or bricks.
