Galvanized Self Drilling Screws

Galvanized self-drilling and tapping screws integrate drilling, tapping and fastening functions, significantly improving installation efficiency. This product offers comprehensive length specifications from 6mm to 150mm and above to meet a variety of application needs. During the manufacturing process, dimensional accuracy is strictly controlled to ensure that product tolerances are always maintained within ±0.1mm, ensuring consistency and reliability in different fastening scenarios.

These screws offer a variety of surface coating options such as conventional galvanized, colored zinc and blue-white zinc to suit different environments and appearance requirements. Each coating is effectively resistant to corrosion, making the screws suitable for a variety of indoor and outdoor environments. The thickness of the coating reaches more than 5µm, providing long-lasting protection even under harsh conditions and extending service life.

JOYEAR is a family-owned business established in 2008 to provide high-volume, efficient industrial parts export solutions to customers around the world. We offer professionally customized metal products. Please send us your design files (whether sketches or digital prototypes) and our experienced team will accurately produce physical parts that meet your specifications.

 

 

Material	Carbon Steel
Coating Type	Regular Zinc / Color Zinc / Blue-White Zinc
Length	6mm - 150mm
Head Style	Pan Head / Hex Washer Head / Countersunk Head
Drive Type	Phillips / Torx / Hex Head

How to use Galvanized Self Drilling Screws?

1

 

Select the correct screw

Choose screws that are suitable for material type and thickness. Make sure the screw diameter, length, drill bit type and coating meet the requirements.

2

 

Checking tools

Check the power supply of the power tool. Adjust clutch torque. Match the batch head and screw groove type (cross/plum blossoms/hexagonal).

3

 

Wear safety equipment

Wear goggles to protect your eyes. Wear gloves to protect your hands.

4

 

Fix the workpiece

Firmly fix the material to be connected. Ensure that the material does not move during operation.

 

Integrated drill bit design

The front end comes with a drill bit, no pre-drilling is required. Drilling, tapping and fastening are done in one go.

Excellent anti-rust

The galvanized layer effectively prevents rust. Adapt to a variety of indoor and outdoor environments, significantly extending service life.

Diverse head and slot type

It provides head shapes ,it is widely compatible with various tools and scenarios.

Efficient construction saves time

The step of drilling first and then twisting is omitted. Significantly improve installation speed, saving time and labor costs.

Light steel keel partition system

Suitable for fixing 0.6mm thickness light steel keel.

 

The special screws for C-shaped steel are designed with a double-wire thread, and the installation torque is only 4.5N·m, which is 30% energy-saving than traditional screws.

 

The tolerance of ±0.1mm ensures that the flatness error of the keel frame is less than 1.5mm/m.

Photovoltaic bracket installation

Used to connect 2.5mm thick photovoltaic brackets with concrete foundations.

 

M8×50mm specification is equipped with a cross/Plum Blossom composite groove type, with shear strength ≥15kN.

 

The thickness of the galvanized layer is ≥15μm, and it has passed the 2000-hour neutral salt spray test to meet the 25-year outdoor durability needs.

Fixed air conditioner external unit bracket

Used to fix 2.0mm thick bracket to concrete wall.

 

The M8×60mm specification is equipped with shock-proof gaskets, which resists vibration fatigue times >10,000 times.

 

The galvanized layer is treated with sealant and can pass the 96-hour acid salt spray test.

Solar water heater bracket assembly

Specially used for the connection and fixation of solar water heater brackets and roofs.

 

M8×80mm stainless steel matrix + galvanized composite processing screws can withstand dynamic wind loads of ≥15kN.

 

The thickness of the galvanized layer is ≥20μm. It passes the 1000-hour salt spray test to adapt to the roof high temperature and high humidity environment.

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