NINGBO YONGBIAO FASTENER CO.,LTD
                                                                                                           
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Zinc Plated DIN7505 Standard Cross Countersunk Self Tapping Galvanized Screw For Building Projects

Price Negotiable
Price: FOB Price:0.01-0.5USD/PCS
MOQ: 10000pcs
Delivery Time: 7-25days
Brand: YongBiao
Product Description

DIN7505 Standard Cross Countersunk Self Tapping Galvanized Screw


1.Products Details:

High-strength fiberboard self-tapping screws are specialized fasteners engineered for securely fastening materials to high-density fiberboard (HDF) and medium-density fiberboard (MDF). Crafted from premium-grade steel, often with surface treatments like zinc plating or black oxide coating, these screws combine robust mechanical properties with enhanced corrosion resistance. Their unique design features a sharply pointed tip that effortlessly penetrates fiberboard without pre-drilling, reducing installation time. The deep, finely pitched threads are optimized to cut into the fibrous structure of the board, creating a tight, reliable hold. Additionally, heads come in various types—Phillips, flat, or pan—to suit different aesthetic and functional requirements, and some models include wafer heads for increased pull-out resistance.


2.Key Features

1. Ease of Installation:

The self-tapping design eliminates the need for pre-drilling, allowing for quick and straightforward assembly, which significantly boosts efficiency in construction, furniture making, and DIY projects.


2. Superior Holding Power:

With deep, aggressive threads, these screws firmly grip the fiberboard, ensuring long-lasting stability and preventing loosening over time, even under heavy loads or vibrations.


3. Cost-Effective:

By streamlining the installation process and reducing the need for additional tools and labor, they lower overall project costs while maintaining high performance standards.


4. Corrosion Resistance:

Surface treatments protect against rust and environmental damage, making them suitable for both indoor and certain outdoor applications, thus extending the lifespan of the fastened structures.


5. Versatility:

Compatible with different fiberboard densities and thicknesses, they can be used in a wide range of applications, from cabinetry and shelving to structural framing and decorative paneling.


6. Minimal Material Damage:

The sharp tips and precise threading minimize splitting and cracking of the fiberboard, preserving the material’s integrity and appearance.

3.Technical Parameters

Specification ST3 ST3.5 ST4.0 ST4.5 ST5 ST6
P 1.35 1.6 1.8 2 2.2 2.6
dk MAX 6.05 7.05 8.05 9.05 10.05 12.05
MIN 5.7 6.64 7.64 8.64 9.64 11.6
k 3.2 3.6 4.25 4.6 5.2 6.2
M 3.1 4 4.4 4.8 5.3 6.6
d MAX 3 3.5 4 4.5 5 6
MIN 2.8 3.3 3.75 4.25 4.7 5.7
dp MAX 1.9 2.2 2.5 2.7 3 3.7
MIN 1.7 2 2.25 2.45 2.7 3.4
d2 3 3.5 4 4.5 5 6




4.Certificate Display

           

5.Production Process

6.Packaging and shipping Details

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Company NINGBO YONGBIAO FASTENER CO.,LTD
Location No.1 Lufeng Industrial Park, Wuxiang Town, Yinzhou District, Ningbo City, Zhejiang, China
Contact Person Amylin

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