The Simpson PSCA 5/8-in. 20-Gauge Galvanized Panel Sheathing Clip by Simpson is engineered to brace unsupported sheathing edges where plywood panels meet edge to edge without a rafter for support. Inserted over the edges of adjacent 5/8-in. plywood panels, the PSCA reduces deflection and keeps panels even to maintain a level plane across the roof deck, while providing the 1/8-in. gap recommended by the American Plywood Association to accommodate the natural shrinkage and expansion of roof sheathing over time.

Key Features

• Designed for 5/8-in. panel thickness - ensures a precise, snug fit on compatible plywood sheathing for reliable edge support at every joint.
• No nails required for installation - clips slide directly over panel edges, speeding up the roofing process and reducing labor on the job site.
• Provides the APA-recommended 1/8-in. gap between panels - allows roof sheathing to naturally expand and contract with moisture and temperature changes, helping prevent buckling or warping of the roof deck.
• Reduces deflection and maintains a level panel plane - keeps adjacent sheathing panels flush and even, supporting a smooth, stable substrate for the finished roof surface.
• Made from 20-gauge steel with a Zinc Galvanized G90 finish - delivers corrosion resistance suited for roofing environments where long-term durability matters.
• Quantity of 250 clips per package - provides enough clips to cover a full roofing project without frequent reordering, keeping work moving efficiently.

Why This Product

• Built-in spacing for code-aligned performance - the PSCA automatically creates the 1/8-in. expansion gap called for by the American Plywood Association, removing guesswork and helping installers meet sheathing best practices on every panel joint.
• Fast, tool-free installation - because no nails or fasteners are needed, these panel sheathing clips can be placed quickly across large roof areas, making them a practical choice for crews looking to maintain pace on a project.
• Corrosion-resistant construction for lasting integrity - the G90 Zinc Galvanized coating on 20-gauge steel means the clips hold up against moisture exposure over the life of the roof, maintaining their structural role without degrading prematurely.
• Trusted Simpson engineering for roof sheathing applications - designed specifically to address unsupported sheathing edges, the PSCA keeps panels aligned and deflection minimized, contributing to a flatter, more stable roof deck from installation day forward.

Specifications

• Model No.: PSCA 5/8
• Brand: Simpson Strong-Tie
• Gauge: 20
• Panel Thickness: 5/8 in.
• Coating/Finish: Zinc Galvanized, G90
• Quantity: 250 per package
• Country of Origin: United States

What's Included

• 250 x Simpson Strong-Tie PSCA 5/8-in. 20-Gauge Galvanized Panel Sheathing Clips

Frequently Asked Questions

What panel thickness is the PSCA 5/8 designed for?

The PSCA 5/8 is specifically designed for use with 5/8-in. thick plywood sheathing panels. It is important to use the same size sheathing clip as the panel thickness for proper fit and performance.

Do I need nails or special tools to install these sheathing clips?

No nails are required. The PSCA clips are designed for quick installation by simply inserting them over the edges of adjacent plywood panels, making the installation process fast and straightforward.

Why is the 1/8-in. gap important when installing roof sheathing?

The PSCA provides a 1/8-in. gap between plywood panels as recommended by the American Plywood Association. This space allows the sheathing to naturally shrink and expand over time due to changes in moisture and temperature, helping to prevent buckling or warping of the roof deck.

Are these sheathing clips protected against rust and corrosion?

Yes. The PSCA 5/8 clips are made from 20-gauge steel and finished with a Zinc Galvanized (G90) coating, which provides reliable corrosion resistance for long-term durability in roofing applications.

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.