Pegasus PF-SF70 70mm Deck Rafter Fastener for Instaflash

The Pegasus PF-SF70 is a high-performance stainless steel deck/rafter fastener engineered specifically for secure, code-compliant attachment of Pegasus InstaFlash2 flashing systems on composition shingle and other sloped roofs. Designed for both rafter and deck mounting applications, it delivers exceptional holding power while maintaining a reliable, long-term waterproof seal.

Key Features & Benefits

• Stainless Steel Construction with Bonded EPDM Washer: Provides superior corrosion resistance and a durable weatherproof seal. The integrated EPDM washer helps prevent leaks at the penetration point.
• 70mm / 75mm Length: Optimized for penetration into roof decking or rafters (typically achieving the required embedment depth for structural integrity).
• 1/2” Socket Driven: Fast and simple installation using standard tools—no specialized equipment needed.
• Versatile Attachment Options:
  • Rafter Attach: Usually 2 fasteners per InstaFlash2 for direct structural connection.
  • Deck Attach: Up to 6 fasteners to distribute loads across the roof decking (may affect maximum spans—consult engineering).
• Compatible with InstaFlash2: Pairs perfectly with Pegasus InstaFlash2 (PIF2 series) flashing. The pre-installed non-hardening butyl sealant in the InstaFlash2 automatically fills gaps, overlaps, and butt joints for an instant, self-healing, watertight seal—no caulking, no ripped shingles, no mess.
• Wide Temperature Range: Installable from 0°F to 250°F and service-rated from -40°F to 250°F, making it suitable for year-round installations in any weather.
• Code Compliant: Meets IBC/CBC, ASCE 7-22, and UL 2703 standards when used as part of a Pegasus racking system.

Ideal For

• Residential and light commercial solar installations on comp shingle roofs.
• Retrofits and new builds requiring reliable roof attachments for Pegasus rail systems (SkipRail, standard rails, etc.).
• Installers looking to minimize roof penetrations, reduce labor time, and ensure long-term waterproofing.

Why Choose Pegasus PF-SF70?

Pegasus fasteners are built for speed and durability, helping installers complete jobs faster with fewer callbacks. The combination of strong mechanical attachment and the chemical flashing properties of InstaFlash2 creates one of the most reliable and installer-friendly roof mounting solutions available.

Product Specifications (typical)

• Material: Stainless Steel
• Length: 70mm (PF-SF70)
• Drive: 1/2” Socket
• Washer: Bonded EPDM
• Quantity Options: Sold individually or in manufacturer packaging (often 24+ per box)

This fastener is a key component in Pegasus Solar’s racking ecosystem, helping deliver faster, cleaner, and more reliable solar installations.

Perfect for SunsUpPV customers and California installers working in the Conejo Valley / Ventura County area or nationwide. Contact us for bulk pricing, project quotes, or compatibility questions with your specific racking layout.