Black Phosphate Drywall Screw

Complies with ISO 7047, ANSI B18.6.3, DIN 7982; drywall-specialized self-tapping fasteners
Material: Low-carbon steel (1010/1018); strength grades 4.8–8.8
Structure: Countersunk flat head + Phillips slot + drywall fine-thread + drill tip
Surface treatment: Black phosphate (lubricity & corrosion resistance);
Size 2.2mm-6.4mm, length 16–50mm (for 9.5–15mm gypsum boards)

Core Features of Black Phosphate Drywall Screw

Countersunk head: Flush installation, no damage to wall coverings
Black phosphate: Reduces friction, extends tool life, resists indoor rust
Drill tip + fine thread: No pre-drilling, quick penetration of gypsum/metal studs
Phillips slot: Compatible with electric screwdrivers, high-efficiency batch installation

Strong holding force: Tight engagement, stable for drywall fixing

Product Parameter (Specification)

Standard

DIN,ASTM/ANSI, ISO

Material

Carbon steel, Stainless Steel,Brass

Surface Treatment

Zinc Plated, Hop Dip Galvanized(HDG) phosphorization,

Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated

Size

ST2.2mm-6.4mm

#0-1/2″

Unite

Piece,KGS,TON

Packing

Bulk cartons with pallet, small boxes in cartons with pallet

Product Application

Black Phosphate Drywall Screw is widely used in building, furniture, home decoration, retail industry, general industry, construction, automotive industry etc.

Black Phosphate Drywall Screw Application Scenario Table

Application Field	Specific Scenarios	Standards & Grades	Key Considerations
Building Renovation	Gypsum board to metal/wooden studs, drywall partition assembly, ceiling tile fixes, corner bead installation.	DIN 7982; Carbon steel 4.6/5.6 (black phosphate).	Self-tapping, no pre-drilling; Black phosphate reduces friction, anti-seize; Fits power tools for fast assembly.
Household DIY	Wall-mounted shelves, decorative panel fixes, closet interior fittings, bookcase backboard installation.	DIN 7982; Carbon steel 4.6 (black phosphate).	User-friendly for non-professionals; Sharp thread penetrates drywall easily; Low cost, cost-effective.
Office Renovation	Office partition walls, ceiling decoration, modular workstation assembly, file cabinet wall mounts.	DIN 7982; Carbon steel 5.6 (black phosphate).	Smooth installation, neat surface; Resists minor vibration; Compatible with thin metal/wooden frames.
Light Commercial Fitout	Small store drywall fixes, restaurant partition assembly, hotel room wall decor, clinic interior cladding.	DIN 7982; Carbon steel 5.6 (black phosphate).	Efficient on-site construction; Black phosphate corrosion resistance for indoor use; Secure grip on drywall.

Black Phosphate Drywall Screw

Black Phosphate Drywall Screw Application Scenario Table

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