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Black Phosphate Coarse Thread Drywall Screws China Factory Suppliers

High-performance black phosphate coarse thread drywall screws from a leading China factory. Our professional suppliers provide corrosion-resistant fasteners designed for fixing plasterboard to wooden battens with a sharp point for secure fastening without damaging surface materials.
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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 TypeBugle HeadThread TypeCoarse Thread (W-Type)
Drive Type#2 Phillips HeadPoint StyleSharp Point
Surface CoatingBlack PhosphateApplicationPlasterboard to Timber/Wood Studs
MaterialHigh-Quality SteelCorrosion ResistanceHigh (Phosphate Treated)
Finish ResultRecessed / FlushCompatibilityDrywall 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 MetricStandard ScrewsOur Phosphate Screws
Installation SpeedModerateHigh (Sharp Point)
Surface QualityFrequent TearingSeamless Bugle Head
Holding PowerBasicSuperior (Coarse Thread)
Life CycleProne to RustExtended (Phosphate)
Labor CostHigher RepairsLower (First-time Fit)

Frequently Asked Questions

Q: What is the difference between coarse and fine thread drywall screws?

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.

Q: Why is the bugle head preferred for plasterboard?

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.

Q: Does the black phosphate coating prevent all rust?

Black phosphate provides significant corrosion resistance for indoor construction; however, for extreme moisture environments, a vinyl coating may be recommended.

Q: Which driver bit is best for these screws?

A #2 Phillips head drill-driver bit is the industry standard and the most compatible tool for our drywall screws.

Q: Can coarse thread screws be used in metal studs?

No, coarse thread screws are specifically for wood. For metal studs, fine thread screws should be used to ensure proper engagement with the metal.

Q: How do I ensure a smooth finish after installation?

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.

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Baoding Yongweichangsheng Metal Produce Co., Ltd.