Black Phosphate Coarse Thread Drywall Screws China Factory Suppliers
Our Black Phosphate Coarse Thread Drywall Screws are engineered for high-performance fastening in professional construction. Featuring a specialized bugle head design, these screws ensure a seamless, recessed finish that prevents the tearing of the outer drywall paper, allowing for a smooth, paint-ready surface after filling.
Specifically optimized for wood stud applications, the coarse thread design (W-type) provides maximum gripping area by meshing deeply with wood grains. Combined with a corrosion-resistant black phosphate coating and a precision-engineered sharp point, these fasteners deliver unmatched stability and ease of installation for plasterboard sheets.
Detailed Parameters
| Head Type | Bugle Head | Thread Type | Coarse Thread (W-Type) |
|---|---|---|---|
| Drive Type | #2 Phillips Head | Point Style | Sharp Point |
| Surface Coating | Black Phosphate | Application | Plasterboard to Timber/Wood Studs |
| Material | High-Quality Steel | Corrosion Resistance | High (Phosphate Treated) |
| Finish Result | Recessed / Flush | Compatibility | Drywall and Wood Studs |
Key Advantages
Corrosion Protection
The black phosphate coating provides a robust barrier against oxidation, ensuring long-term structural integrity.
Rapid Installation
The ultra-sharp point allows for effortless penetration of drywall paper and rapid starts into timber studs.
Superior Grip
Wide coarse threads maximize the gripping surface area in wood, preventing screw pull-out or loosening.
Flawless Finish
Bugle head design allows the screw to embed deeply without tearing paper, creating a perfect recessed surface.
Precision Drive
Standard #2 Phillips head ensures compatibility with most professional drill-driver bits for torque efficiency.
Industrial Grade
Manufactured to strict tolerances, ideal for large-scale residential and commercial construction projects.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of fastener stock to ensure zero downtime on construction sites.
Quality Assurance
Strict batch testing for coating thickness and thread precision to meet industry standards.
Supply Chain Logic
Optimized logistics for bulk delivery of heavy-duty metal fasteners worldwide.
Custom Specifications
Ability to adjust lengths and coatings based on specific regional building codes.
Packaging Solutions
Secure, industrial-grade packaging to prevent corrosion and damage during transit.
Technical Support
Expert guidance on choosing the right thread type for various substrate materials.
Investment Return Comparison
| Performance Metric | Standard Screws | Our Phosphate Screws |
|---|---|---|
| Installation Speed | Moderate | High (Sharp Point) |
| Surface Quality | Frequent Tearing | Seamless Bugle Head |
| Holding Power | Basic | Superior (Coarse Thread) |
| Life Cycle | Prone to Rust | Extended (Phosphate) |
| Labor Cost | Higher Repairs | Lower (First-time Fit) |
Frequently Asked Questions
Coarse thread screws are designed for wood studs, offering a wider thread pitch for maximum grip in timber. Fine thread screws are typically used for metal studs.
The bugle head allows the screw to sink slightly below the surface without rupturing the paper face of the drywall, making it easier to hide with joint compound.
Black phosphate provides significant corrosion resistance for indoor construction; however, for extreme moisture environments, a vinyl coating may be recommended.
A #2 Phillips head drill-driver bit is the industry standard and the most compatible tool for our drywall screws.
No, coarse thread screws are specifically for wood. For metal studs, fine thread screws should be used to ensure proper engagement with the metal.
Ensure the bugle head is driven just below the surface. Fill the resulting indentation with a joint compound, sand it smooth, and paint over it.










