Customized cnc parts 304 316l stainless steel Customized flange barb compression fitting tube non standard fastener

This is a customized flange spike pressing kit cylinder. It is made by numerically controlling the machining of 304/316 stainless steel bar materials, and the surface is treated with natural polishing or electrolytic polishing. The product structure integrates four functional modules: the front large flange provides axial positioning and a bearing surface, the middle multi-ring spiral slot forms a mechanical interlocking structure, the tail conical introduction part facilitates insertion and assembly, and the central through-hole has threads to achieve subsequent bolt connection. It is specially designed for high-strength embedded connections of soft substrates (wood, plastic, composite materials), achieving permanent anchoring through cold press interference fit, and is widely used in furniture hardware, outdoor facilities, ships and yachts, etc.

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.

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