Professional M12x250 mm double thread screw manufactured from A2 stainless steel, designed for mounting photovoltaic support structures on wooden beams and residential or industrial roofing systems.

The screw features a wood thread on the lower section and a metric M12 thread on the upper section, allowing secure fastening of photovoltaic brackets, rails, and mounting profiles.

Supplied complete with hex nuts, stainless steel washer, and EPDM sealing gasket to ensure reliable mechanical fastening and weatherproof installation.

Ideal for professional photovoltaic installations on wooden roof structures.

⚙️ Main Features

✔ Double thread screw for photovoltaic mounting
✔ Suitable for wooden roof structures
✔ Metric thread: M12
✔ Length: 250 mm
✔ Made of A2 stainless steel / SS304
✔ High corrosion resistance for outdoor use
✔ Complete with nuts, washer, and EPDM gasket
✔ Professional outdoor photovoltaic application

🔧 Technical Specifications

• Product Type: Double thread photovoltaic screw
• Size: M12 × 250 mm
• Material: Stainless steel A2 / SS304
• Application: Photovoltaic mounting on wood
• Upper Thread: Metric M12
• Lower Thread: Wood thread
• Outdoor Use: Yes

📦 Included Components

• Hex nuts
• Stainless steel washer
• EPDM sealing gasket

📦 Packaging

• Pack Quantity: 400 pieces

🌐 Applications

Ideal for:

• Photovoltaic systems
• Mounting rails and brackets
• Residential roofing structures
• Industrial roofing systems
• Wooden support structures

💡 Advantages

✔ Excellent corrosion resistance
✔ Secure mechanical anchoring
✔ Weather-resistant EPDM sealing
✔ Reliable fastening for solar mounting systems
✔ Suitable for long-term outdoor installations

🟢 Summary

The M12x250 mm double thread stainless steel screw is a professional fastening solution for photovoltaic mounting systems on wooden structures.

Thanks to its A2 stainless steel construction, combined with nuts, washer, and EPDM gasket, it provides secure installation, high durability, and reliable weather protection for solar applications. Supplied in a convenient pack of 400 pieces for professional photovoltaic installations and large-scale projects.