Carbon Steel Self-Drilling Screws
Product Overview
The Phillips Thin Flat Head Reduced-Tail Self-Drilling Screw is a high-performance self-drilling fastener designed for thin metal plates, light steel keels, and decorative panel connections. It features an integrated structure consisting of a thin Phillips countersunk head, a reduced-tail cutting slot, and a self-drilling tip, with a color zinc or mechanical galvanization finish. It completes drilling, tapping, and fastening in one step without pre-drilling, balancing installation efficiency and surface flatness, and is widely suitable for various indoor and outdoor connection scenarios.
Product Applications
Construction & Decoration: Fixing gypsum boards, calcium silicate boards to light steel keels for ceiling and partition wall system installation.
Metal Plate Connection: Splicing and fixing color steel plates, ventilation ducts, equipment casings, and other thin metal sheets.
Door, Window & Profile Installation: Assembly of aluminum alloy door/window frames, sunroom profiles, and metal railings.
Furniture & Equipment Assembly: Fastening connections for metal furniture, electrical cabinets, and decorative panels.
Product Features
Efficient Self-Drilling: Built-in drill-tail tip eliminates the need for pre-drilling, while the reduced-tail cutting slot ensures smooth chip removal, significantly increasing construction efficiency.
Thin, Flat & Aesthetic: Thin countersunk head design allows for flush installation into the material surface with no protrusions or sharp edges, suitable for scenarios requiring a flat finish.
Reliable Locking: 10-16 coarse threads provide strong engagement, resisting vibration and wind pressure, and remain stable without loosening during long-term use.
Broad Rust-Resistant Adaptability: Available in both color zinc and mechanical galvanization processes to meet the needs of different environments, such as dry indoor or humid outdoor conditions.
Universal & Easy to Install: Phillips drive is compatible with mainstream power tools; available in multiple lengths from 16-30mm to fit various plate thicknesses.
| Material | Carbon Steel |
| Surface Treatment | Color Zinc / Mechanical Galvanized |
| Head Type | Thin Flat Head |
| Drive Type | Phillips Recess |
| Thread Type | Full Thread |
| Screw Diameter | Approx. 4.8mm |
| Screw Length | Optional (16mm to 30mm) |
| Screw Type | Self-Drilling Screw |
| Corrosion Resistance | Medium-High (Suitable for indoor/outdoor humid, mildly corrosive environments) |
| Compatible Tools | Phillips Screwdriver or Power Tool |

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malingfei@linghongscrew.com

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