Chipboard Screws

Phillips Countersunk Drywall Screws – Product Introduction

Phillips Countersunk Drywall Screws are specialized self-tapping fasteners designed for concealed fastening applications, integrating the advantages of precise positioning, full embedding and strong stability. With a countersunk head and standard Phillips slot, they can be completely recessed into the surface of gypsum board, wood or other materials, leaving a flat and smooth surface that is easy for subsequent puttying, painting and decoration. Made of high-quality raw materials and processed through strict production processes, they are widely used in interior decoration, furniture manufacturing, electrical installation and light-duty construction projects, and are favored by global distributors, contractors and industrial purchasers.

Core Advantages

Concealed Fastening, Perfect Surface Finish: The countersunk head design matches the material surface perfectly after installation, no protrusions, ensuring a flat and smooth surface, which greatly reduces the workload of subsequent finishing and improves the overall decoration quality.
Phillips Slot Design, Anti-Slip and Labor-Saving: Standard PH2 Phillips slot with deep groove design, which can effectively prevent slipping during installation, ensure uniform force transmission, and be compatible with most electric and manual screwdrivers on the market for easy operation.
High Strength and Durability: Adopt C1022A medium carbon steel as raw material, go through quenching and tempering heat treatment, with high surface hardness (HRC45-52) and tough core (HRC32-38), not easy to break, slip or deform during installation.
Precise Thread, Strong Holding Power: The thread is processed by high-precision thread rolling technology, with clear lines and uniform pitch, which can closely engage with the base material, providing strong tensile force and holding power, and preventing loosening after long-term use.
Versatile and Wide Application: Suitable for fixing gypsum board, wood board, fiberboard, particleboard, light steel plate and other light materials, and can be used in both indoor dry environment and moderately humid environment (with appropriate surface treatment).

Product Classification & Application Scenarios

Screw Type	Thread Feature	Surface Treatment	Application Scenarios
Phillips Countersunk Coarse Thread Drywall Screws (Type W)	Single coarse thread, wide pitch, fast tapping	Phosphating (Grey), Blue-White Zinc	Fixing gypsum board to wooden studs, interior partition walls, furniture assembly
Phillips Countersunk Fine Thread Drywall Screws (Type S)	Double fine threads, high density, strong fastening	Phosphating, Color Zinc, Epoxy Coating	Fixing gypsum board to light-gauge steel studs, electrical junction boxes, light steel plate fixing
Phillips Countersunk Stainless Steel Drywall Screws	Fine thread, corrosion-resistant	Natural Stainless Steel (304/316)	Humid environments such as bathrooms, kitchens, and outdoor light-duty fixing

Key Specifications & Parameters

Parameter	Standard Value	Optional Value	International Standard
Material	C1022A Medium Carbon Steel	304/316 Stainless Steel	ANSI B18.6.4, DIN 18182, GB/T 3098.11
Surface Treatment	Phosphating (Grey), Blue-White Zinc	Color Zinc, Epoxy Coating, Dacromet	Corrosion resistance meets export standards
Drive Type	PH2 Phillips Slot	Pozidriv Slot, Hex Socket	Universal design, compatible with global tools
Head Type	Countersunk Head (Flat Head)	Countersunk Head with Cross Groove	Full embedding, no surface protrusion
Diameter	#6(3.5mm), #8(4.2mm)	#7(3.9mm), #10(4.8mm)	Mainstream specifications for global export
Length	16mm, 25mm, 35mm, 41mm	13mm-100mm	Customizable according to order requirements
Tensile Strength	≥600MPa	≥800MPa (High-Strength Type)	Meets industrial fastening requirements

Comparison: Countersunk vs Bugle Head Drywall Screws

Comparison Item	Phillips Countersunk Drywall Screws	Bugle Head Drywall Screws
Head Feature	Completely countersunk, flat surface after installation	Slightly recessed, arc-shaped head, not fully flat
Surface Finish	Excellent, no protrusions, easy for painting and finishing	Good, slight recess, suitable for simple finishing
Application Priority	High-demand for flat surface, such as furniture, high-end decoration	General decoration, such as common walls and ceilings
Material Adaptability	Suitable for wood, gypsum board, fiberboard, light steel	Mainly for gypsum board and studs
Installation Difficulty	Moderate, need to control force to avoid material damage	Easy, not easy to damage gypsum board paper

Application Scope

Interior decoration: Fixing gypsum board, ceiling board, partition wall board, decorative panels
Furniture manufacturing: Assembly of wooden furniture, cabinetry, bookcases, wardrobes
Electrical installation: Fixing electrical junction boxes, cable trays, switch panels
Light-duty construction: Fixing light steel plates, aluminum gussets, fiberboard
DIY and maintenance: Home decoration, equipment maintenance, small-scale renovation projects

Why Choose Our Phillips Countersunk Drywall Screws?

Strict Quality Control: From raw material selection to finished product delivery, every link is inspected strictly, ensuring consistent size, uniform hardness and no defective products.
Precise Manufacturing: High-precision cold heading and thread rolling technology, ensuring the countersunk head is flat, the thread is clear, and the installation is smooth without jamming.
Customization Support: We can customize diameter, length, surface treatment and packaging according to your export and bulk purchase needs, providing OEM/ODM services.
Export-Oriented Quality: Complies with international standards, passes salt spray test and tensile test, with stable quality and competitive factory price, suitable for global market promotion.
Complete After-Sales Service: Provide product test reports, quality certificates and customs clearance documents, and solve any quality problems encountered during use in a timely manner.