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Zinc Plated Countersunk Head Machine Thread Self-Drilling Screws

Product Details

PRODUCT TYPE : Self-Drilling Screws

SIZE : M3-8,Length:M30-50/Customized

HEAD TYPE : Countersunk

Drive Type : Phillips

Thread Type : Machine Thread

Packaging & Shipping

PACKAGING : Bulk Pack | Small Boxed

PRICE TERMS : Fob/CFR/CIF/DDP/DAP

Description Specification Related Products Form

Description

Zinc Plated (Blue-White Zinc) Countersunk Phillips Drive Machine Thread Self-Drilling Screws are versatile industrial fasteners designed for composite connections between light steel keels, color steel plates, thin metal sheets, and wood. The screws feature a 90° countersunk head with Phillips drive, full machine threads, and a high-hardness self-drilling tip, enabling direct penetration of steel and tapping without pre-drilling. The countersunk head sinks flush with the workpiece surface after installation for a smooth finish, while the Phillips drive is compatible with standard screwdrivers and power tools for universal use. Widely used in light steel keel partitions, drywall ceilings, color steel tile installation, and steel-to-wood connections, they are versatile self-drilling screws balancing cutting efficiency, corrosion resistance, and ease of installation.
Core Advantages:
1.Versatile Self-Drilling Design, Doubled Efficiency: High-hardness drill tail penetrates steel up to 2.5mm directly, with machine threads completing tapping and locking in one step, improving efficiency by over 60% without additional drilling tools
2.Countersunk Head for Aesthetic Finishing: 90° countersunk head sinks flush with the workpiece for a smooth surface, ideal for drywall ceilings and color steel tile installations, not affecting subsequent painting or veneering
3.Blue-White Zinc Coating for Cost-Effective Rust Protection: Economical blue-white zinc plating meets rust protection needs for most indoor and mild outdoor environments, offering high cost-effectiveness for large-scale procurementZinc Plated Countersunk Head Machine Thread Self-Drilling Screws
4.Universal Phillips Drive, Low Installation Threshold: No special bits required, compatible with standard screwdrivers and power tools for convenient installation, suitable for small-scale renovation, maintenance, and bulk projects
5.Multi-Scenario Versatility for Composite Connections: Meets light steel keel-to-wood, color steel tile-to-purlin, and metal-to-wood connection needs in one screw, reducing SKUs and procurement costs
6.High Durability, Resistant to Breakage & Deformation: Premium carbon steel + heat treatment offers high hardness and toughness, withstanding installation torque and long-term loads for a longer service life than ordinary screws
7.Smooth, Burr-Free Surface for Reliable Installation: Bright, burr-free blue-white zinc coating with uniform threads, ensuring smooth installation without jamming or workpiece damage
Common Application:
1.Light Steel Keel to Wood Base Connections: Fixing light steel keels to wood framing for drywall partitions and ceilings
2.Color Steel Tile to Wood Structure Connections: Installing color steel tiles and metal roof panels to purlins and wood beamsZinc Plated Countersunk Head Machine Thread Self-Drilling Screws
3.Composite Panel Fixing: Connecting plywood, particleboard, and MDF to thin metal sheets
4.Interior Renovation Projects: Installing and securing ceilings, partitions, door/window frames, drywall, and OSB boards
5.Steel Structure Reinforcement Projects: Fixing wood framing to metal brackets and connectors, reinforcing wood joists
6.Equipment & Electrical Installation: Connecting distribution boxes, surveillance brackets, and equipment enclosures to metal/wood substrates
7.Repair & Renovation Projects: Connection reinforcement in old house renovation, light steel retrofits, and wood structure repairs

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