Metal Sawtooth Expansion Pipe Self-Tapping Screws | Hollow Wall Anchors
Metal Sawtooth Expansion Pipe Self-Tapping Screws | Hollow Wall Anchors
Metal Sawtooth Expansion Pipe Self-Tapping Screws for Hollow Walls
Get a rock-solid fastening solution with these Metal Sawtooth Expansion Pipe Self-Tapping Screws. Available in sets of 5 to 100, these versatile hollow wall anchors are engineered for a wide range of installation tasks — from mounting fixtures on drywall and tile to securing fittings on hollow partition walls. The sawtooth design bites firmly into the surrounding material to create a strong, anti-loosening hold that stays put over time.
Key Features
- Material: Durable carbon steel construction for lasting strength and resistance to wear
- Size: M6 30mm expansion pipe + 35mm self-tapping screw
- Set Options: Choose from multiple quantity sets (5 to 100 sets) to match your project needs
- Color Options: Available in 4 color finishes to suit your preference
- Sawtooth Grip Design: Unique serrated expansion pipe locks securely into hollow walls, tiles, and drywall without spinning or pulling out
- Anti-Loosening: Once installed, the fastener resists vibration-induced loosening for a reliable, long-term hold
- Wide Application: Ideal for hollow walls, drywall, ceramic tile, gypsum board, and thin partition panels
- Easy Installation: Self-tapping screw threads make installation quick and straightforward — no pre-threading required
What's Included
- Sawtooth expansion pipe anchors (M6, 30mm)
- Matching self-tapping screws (35mm)
- Available in sets of 5, 10, 20, 50, or 100
Ideal For
- Mounting shelves, mirrors, and cabinets on hollow or drywall surfaces
- Securing electrical boxes and conduit fittings
- General home improvement and renovation fastening tasks
- Professional construction and trade applications
For guidance on safe use of fasteners and hand tools in home improvement projects, refer to the U.S. Consumer Product Safety Commission (CPSC) DIY Safety Guide.
Frequently Asked Questions
Q: What surfaces are these sawtooth expansion pipe screws compatible with?
A: These metal sawtooth expansion pipe self-tapping screws are designed for hollow walls, drywall, gypsum board, ceramic tile, and thin partition panels. The sawtooth anchor expands behind the surface to create a firm, anti-loosening grip — making them ideal for any hollow or cavity wall installation.
Q: What size are these expansion anchors and screws?
A: Each set includes an M6 30mm sawtooth expansion pipe anchor paired with a 35mm self-tapping screw. They are crafted from carbon steel for strength and durability across a variety of fastening applications.
Q: How many sets do I need for my project?
A: These screws are available in multiple set sizes — from as few as 5 sets up to 100 sets — so you can choose the quantity that best matches the scale of your project. Buying in larger quantities is a cost-effective choice for renovation or construction work.
Q: Are these screws easy to install without special tools?
A: Yes. The self-tapping screw design means no pre-threading of the anchor is needed. Simply insert the expansion pipe into a drilled hole, then drive the self-tapping screw in to expand the anchor and lock it securely in place with a standard screwdriver or power drill.