Special Features

• Durable Construction: Made from corrosion-resistant materials, ensuring long-lasting performance.
• Easy Installation: Designed for secure fastening in rooftop solar applications.
• Weather-Resistant: Suitable for outdoor use in various climates.

Technology Overview

The EcoFasten 4" Lag Screw provides reliable structural support for solar racking systems, ensuring stability for residential and commercial installations.

Product Specifications

Why Choose Us Solar Supplier?

As an American founded company out of Kentucky, US Solar Supplier is committed to providing top-quality solar products, backed by the world’s leading manufacturers. Our promise is to get you the fairest price from the best brands that offer warranties you can count on. We are updating our inventory daily with solar components that offer the latest technology. With a reputation for excellence and a dedication to customer satisfaction, we ensure that every product we sell meets the highest standards in the industry.

Need Assistance?
We’re here to help! If you have any questions or need more information before making your purchase, don’t hesitate to call us at 1-800-230-7004. Our knowledgeable and friendly team is ready to assist you with product details, installation advice, or the purchasing process.

Why Buy From Us?

• Trusted Supplier: We work with Tier 1 manufacturers who stand behind their products. Selling only new products, never used. 
• Expert Support: Our team is here to guide you every step of the way.
• Manufacturer-Backed Warranties: Enjoy peace of mind with the 25-year performance guarantee and 12-year product warranty directly from the manufacturer.
• Easy and Secure Checkout: Your information is protected with top-notch security for a smooth, worry-free transaction.

Join the many satisfied customers who have trusted us for their solar needs. Add to your cart now to secure your high-efficiency solar panels and take the next step towards sustainable energy!