High-Quality Cross galvanized flat head self tapping Manufacturer, Manufacturers

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Product Description

Cross galvanized washes tapping screws
Thread specifications (d) ST2.2 ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3
P Pitch 0.8 1.1 1.3 1.4 1.6 1.8 1.8
a Max 0.8 1.1 1.3 1.4 1.6 1.8 1.8
dk Max 3.7 5.3 6.64 7.64 9.14 10.57 11.57
Min 3.4 5 6.28 7.28 8.78 10.14 11.14
k Max 1.6 2.4 2.6 3.1 3.7 4 4.6
Min 1.4 2.15 2.35 2.8 3.4 3.7 4.3
dc h15 Max 5 7 8 9 10 12.5 14
Min 4.52 6.42 7.42 8.42 9.42 11.8 13.3
s Min 0.3 0.5 0.8 0.8 0.8 1 1
y C type 2 2.6 3.2 3.7 4.3 5 6
F/FT type 1.6 2.1 2.5 2.8 3.2 3.6 3.6
Slot Number 0 1 2 2 2 3 3
M 1 3 3.9 4.4 4.9 6.4 6.9
Insert depth/maximum 0.85 1.4 1.4 1.9 2.4 2.6 3.1
Insert depth/minimum 1.2 1.8 1.9 2.4 2.9 3.1 3.6
Key Features & Benefits

Cross galvanized flat head self tapping screw is a high-performance mechanical connecting component designed for efficiency and durability.

⚙️ Excellent Fastening

Made of high-strength materials, ensuring components are tightly secured for maximum equipment stability.

🛠️ Easy Disassembly

Features a specialized head design for quick tightening or removal with a standard screwdriver, saving time by eliminating pre-punching.

🛡️ Corrosion Resistance

Chemically treated with a black galvanized oxide film to prevent rust, making it ideal for long-term use in harsh environments.

📐 Simple Structure

Consists of a precision-engineered head, shaft, and threaded parts, ensuring easy manufacturing and universal application.

🌍 Wide Application

Perfectly suited for mechanical equipment, building structures, furniture, electronics, and aerospace industries.

💪 Enhanced Strength

The flat cross-head design ensures better engagement with base materials, offering superior tensile and shear resistance.

📍 Higher Stability

Provides a more reliable connection that significantly reduces the possibility of loosening over time.

Frequently Asked Questions
What are the primary uses for cross galvanized flat head self-tapping screws?
These screws are widely used in furniture manufacturing, electronic product assembly, building structures, and mechanical equipment where a stable, flush connection is required.
Do these screws require pre-drilled holes?
One of the main advantages of these self-tapping screws is that they can often be used without pre-drilling in softer materials, saving significant installation time.
How does the galvanized coating benefit the screw?
The galvanized oxide film provides a protective barrier against moisture and chemicals, preventing rust and corrosion even in challenging outdoor or industrial environments.
Can I use a standard screwdriver for these screws?
Yes, the cross-shaped (Phillips) head design is compatible with standard manual or electric screwdrivers, making them very easy to install and remove.
What is the advantage of the "flat head" design?
The flat head allows for a larger contact area with the material surface, providing better load distribution and a more stable, secure fastening compared to traditional pointed heads.
Are these screws available in different thread specifications?
Yes, we provide a wide range of thread specifications from ST2.2 to ST6.3 to meet various mechanical and structural requirements.

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