Zinc Plated Flat Head Countersunk Self Tapping Screws - Fine Thread for Wood Furniture Assembly | China Suppliers & Factory
Self tapping screws are designed to cut or form their own mating thread when driven into a pre drilled hole or directly into softer materials. This eliminates the need for separate tapping operations saving time and labor during assembly.
The screw features a sharp pointed tip with cutting edges that removes material as it is driven in. The thread profile is designed to create a tight fit with the surrounding material without the need for a pre tapped hole.
Stainless Steel: Offer good corrosion resistance for outdoor and wet areas.
Brass: Non magnetic and corrosion resistant with a decorative finish good for electronics and fixtures.
Galvanized: Feature a zinc coating that provides good corrosion protection for general outdoor use.
Black Oxide: Offer a matte black finish that reduces glare for indoor applications.
Size Range: Metric sizes M2 M3 M4 M5 M6 with standard lengths from 6mm to 50mm. Custom sizes available for OEM orders.
Strength Grades: Class 4.8 for general purpose. Class 6.8 for higher tensile strength. Class 8.8 for heavy duty applications. Class 10.9 and Class 12.9 for high strength requirements.
Applications: Self tapping screws are widely used for electronics housing assembly, wood furniture construction, trailer flooring installation, plastic enclosure fastening, sheet metal work, automotive interior trim, signage mounting, and general industrial assembly where speed is important.
Quality Control: All self tapping screws undergo thread gauging and hardness testing. Various strength grades available. Custom manufacturing for special head styles and materials. Bulk wholesale pricing with factory direct shipping worldwide.
- Cuts own thread when driven into metal wood or plastic
- No pre tapping needed saves assembly time
- Flat head for flush mounting smooth finish
- Wafer head low profile wide clamping area
- Fine thread for thin metal and hard plastic
- Stainless steel brass galvanized material options
- Metric M2 to M6 Class 4.8 to 12.9
A: Self tapping screws feature a sharp pointed tip with cutting edges that allow them to cut or form their own mating thread as they are driven into the material, saving assembly time and labor.
A: Flat head screws feature an 82-degree countersunk cone shape that sits flush with the surface for a smooth finish. Wafer head screws have a low-profile, wide head that provides excellent clamping pressure without protruding too high.
A: Fine thread self tapping screws are ideal for thin metal and hard plastics as they offer more threads engaged per inch for better pull-out resistance. Coarse threads are preferred for faster engagement in softer materials like wood.
A: Stainless steel and brass offer excellent corrosion resistance for outdoor, wet, or electronic applications. Galvanized screws provide a zinc coating for general outdoor protection, while black oxide offers a matte finish for indoor use.
A: We offer metric sizes from M2 to M6 with lengths ranging from 6mm to 50mm. Strength grades include Class 4.8, 6.8, 8.8, 10.9, and 12.9 to cover general-purpose to heavy-duty industrial applications.