Small Flange Head Self-Drilling Fasteners With Clear Waterproof Washer

Our screws are professional precision light-duty drilling fasteners optimized for narrow working spaces and high aesthetic & sealing requirements. Different from conventional standard large flange drill tail screws with bulky heads and limited application scenarios, this product adopts a customized mini small washer head design, which greatly reduces the outer diameter of the flange head on the premise of ensuring basic pressure-bearing capacity. The compact structural design effectively avoids installation interference in narrow gaps, dense assembly positions and limited-space equipment structures, perfectly adapting to precision installation scenarios that ordinary flange screws cannot meet. The matched high-grade transparent EPDM sealing gasket is processed by precision molding, with high light transmittance, excellent compression resilience and long-term anti-aging performance. Unlike traditional black or metal opaque gaskets, the transparent design allows construction personnel to directly observe the fitting tightness between the gasket and the workpiece surface, timely checking for gaps and incomplete sealing, greatly improving the qualification rate of sealed installation. The optimized self-drilling tail is moderately hardened, with moderate piercing force, which can quickly drill through thin light steel plates, color steel decorative panels, density boards and plastic composite plates without pre-drilling, and will not cause excessive extrusion damage to thin substrates. The standard uniform thread profile ensures stable bite force and anti-loose performance, realizing integrated drilling, tapping and locking. With unique small-size space-saving advantage, visible transparent sealing effect and reliable light-load fastening stability, this product is a exclusive precision fastening solution for modern refined decoration, small-space engineering and light-duty sealed assembly projects.

Key Features

- Mini Small Washer Head Design: Customized compact flange structure, small occupying space, no installation interference, perfectly suitable for narrow gap and dense assembly scenarios.

- Visible Transparent Sealing Gasket: High-transparency EPDM material, intuitive fitting state inspection, no hidden gaps, excellent waterproof, dust-proof and anti-aging performance.

- Moderate Hardness Drill Tail: Optimized piercing force, efficient drilling for thin plates and light profiles, no substrate deformation or damage, high installation flatness.

- Integrated One-Step Fastening: Combine drilling, threading and locking functions, save pre-processing labor and time, improve overall construction efficiency.

- Light-Load Pressure Resistance: Reasonable head structure design, uniform stress dispersion, stable fastening without plate sinking for light-duty thin plate assembly.

- Long-Term Sealing Stability: Transparent gasket features strong compression recovery, not easy to harden or fall off, maintaining lasting sealed protection in indoor and mild outdoor environments.

Applications

- Narrow gap precision decoration installation projects

- Thin light steel plate and color steel panel sealed fixing

- Dense assembly positions non-interference fastening

- Furniture and equipment small-space concealed assembly

- High aesthetic requirement visible sealed connection scenarios