Large flange supporting surface:
A circular flange with an outer diameter 2-3 times that of the rod section. After pressing in, it is flush with or slightly raised above the surface of the substrate, providing a large bearing area.

Multiple spiral pronged grooves:
3 to 5 precision-turned V-shaped or rectangular grooves, with sharp prongs on the groove edges. When pressed in, they embed into the substrate to form multiple locking mechanisms.

Conical inlet tail end:With a 20° - 30° conical angle design, it automatically aligns and guides during compression, reducing the initial peak pressure.

Full through-hole internal thread:
The center is equipped with standard internal threads (M6 - M12), providing a metal-grade strength anchor point for subsequent bolt connections

Variable wall thickness design
The flange area is thickened to ensure strength, while the protruding section is thinned to enhance the elastic deformation capacity, optimizing the compression performance.

1. The metal-grade connection strength of the soft base material
Multiple serrations are cut into the wood or plastic during the pressing process, forming a mechanical interlocking structure. The anti-pulling force can reach 500N - 2000N (depending on the specification and base material), far exceeding the frictional anchoring principle of ordinary expansion tubes.
2. One-sided installation without backside operation
Installation can be completed by pressing from the front side of the base material without contacting the backside. This is particularly suitable for later installation in closed cavities, thick plates, or assembled structures.
3. Waterproof and corrosion-resistant sealing
The stainless steel material does not rust. The flange is closely adhered to the surface of the base material to form the first waterproof line. The serration slots are filled with the base material to form multiple sealing barriers, suitable for outdoor humid environments.
4. Concealed and aesthetically pleasing connection
The flange can be sunk into the sink holes of the base material to achieve complete concealment, or exposed as a decorative metal ring. The internal threaded holes can be equipped with decorative covers to meet high-end appearance requirements.
5. Removable maintenance design Although the sleeve itself is permanently anchored, the inner threaded part allows the bolts to be repeatedly disassembled. The connection components can be replaced for maintenance, different from one-time expansion anchors.

Solid wood furniture:Hidden metal connection points between table legs, armrests, bed posts and panels

Outdoor flooring: Embedded anchoring of preservative-treated wood flooring and keels to prevent water accumulation on the surface. Ships and yachts: High-strength fixation of deck    accessories and armrest bases on fiberglass or solid wood substrates

Bathroom facilities:Metal connection anchor points for bathroom cabinets and mirror cabinets in humid environments

Sports equipment: Plastic/wooden bases for fitness equipment and outdoor recreational facilities

Exhibition and display: Rapid disassembly, reassembly and reuse connection systems for exhibition stands and props