Unirac #12-14 x 2.50 Stainless Steel Screw Hardware 1 Piece | 003250W 

The Unirac 003250W is a high-quality stainless steel self-drilling screw designed for secure attachment of solar mounting systems to roofing structures. Engineered specifically for Unirac solar racking applications, this fastener provides reliable structural performance and long-term corrosion resistance in outdoor environments.

Featuring a #12-14 thread size, 2.50-inch length, and integrated EPDM washer for water mitigation, this screw helps ensure a secure and weather-resistant mounting connection for photovoltaic installations.

Key Technology

• Stainless Steel Construction
  Provides excellent corrosion resistance and long-term outdoor durability.

• Self-Drilling Design
  Allows fast installation without pre-drilling in many mounting applications.

• Integrated EPDM Washer
  Helps reduce water intrusion and improves weather sealing at roof penetrations.

• #12-14 Thread Configuration
  Designed for strong holding power and secure mounting performance.

• 2.50-Inch Length
  Suitable for a wide range of solar attachment and structural fastening applications.

• Compatible with Unirac Mounting Systems
  Designed for integration with Unirac solar racking and attachment hardware.

• Weather-Resistant Hardware
  Built for long-term rooftop exposure in harsh environmental conditions.

Best Uses

• Solar Roof Attachments
  Securely fastens solar mounting hardware to roofing structures.

• Unirac Racking Systems
  Designed for use with compatible Unirac solar mounting products.

• Residential & Commercial Solar Installations
  Provides durable fastening performance for rooftop PV systems.

• Outdoor Structural Fastening
  Suitable for weather-exposed mounting applications requiring corrosion resistance.

Product Specifications

Reliable Stainless Steel Fastening for Solar Mounting Systems

The Unirac 003250W screw hardware provides strong structural attachment, weather-resistant sealing, and long-term durability—making it an essential component for secure solar mounting installations.

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.

Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.