The Simpson Adhesive Piston Plug for 5/8 in. Hole Diameter is a precision-fit plastic plug from Simpson engineered for use with the Simpson Strong-Tie Piston Plug Delivery System. Designed to dispense adhesive into drilled holes for threaded rod and rebar dowel installations, this plug handles demanding orientations including overhead, upwardly inclined, and horizontal applications, as well as deep embedments and submerged (underwater) concrete conditions. The matched tolerance design between the piston plug and the drilled hole virtually eliminates the formation of voids and air pockets during adhesive dispensing, delivering consistent, reliable results across a wide range of anchoring applications.

Key Features

• Model number embossed on each plug - makes it easy to identify the correct plug on the job site, reducing the risk of mixing up sizes across multiple applications.
• Matched tolerance design sized for 5/8 in. drilled holes - virtually eliminates voids and air pockets during adhesive dispensing, promoting consistent adhesive placement and stronger anchor performance.
• Compatible with any Simpson Strong-Tie concrete anchoring adhesive - gives installers the flexibility to use the same plug across multiple anchoring systems and projects without sourcing additional components.
• Barbed end for secure tubing connection - provides a reliable connection to the flexible extension tubing, helping maintain a controlled flow of adhesive through the delivery system.
• Suitable for a wide range of installation orientations and embedment depths - from horizontal and overhead drilling to submerged concrete conditions, this plug supports the full scope of demanding dowel and threaded rod installations.
• Plastic construction - lightweight and easy to handle during adhesive dispensing without adding unnecessary bulk to the delivery setup.

Why This Product

• Built to prevent installation failures - the matched tolerance fit between this plug and a 5/8 in. drilled hole virtually eliminates air pockets and voids, which are among the most common causes of inconsistent adhesive anchor performance.
• Handles the toughest anchoring conditions - whether the application involves overhead concrete, steeply inclined holes, deep embedments, or underwater concrete, this plug is specifically designed to maintain controlled adhesive dispensing where gravity and moisture would otherwise compromise results.
• Seamlessly integrates into the Simpson Strong-Tie system - the barbed end connects directly to flexible extension tubing and the plug works with any Simpson Strong-Tie concrete anchoring adhesive, making it a natural fit for contractors already working within that ecosystem.
• Quick plug identification on the job site - the embossed model number on each plug means installers can confirm they have the right component without stopping to cross-reference packaging, keeping the workflow moving during time-sensitive pours and placements.

Specifications

• MPN: PP62-RP10
• Brand: Simpson Strong-Tie
• Hole Diameter: 5/8 in.
• Material: Plastic
• Packaging: Packs of 10 and Cartons of 100

Approved Applications

• Threaded rod installations in drilled concrete holes
• Rebar dowel installations in drilled concrete holes
• Overhead adhesive dispensing orientations
• Upwardly inclined adhesive dispensing orientations
• Horizontal adhesive dispensing orientations
• Deep embedment installations
• Submerged (underwater) concrete conditions

Frequently Asked Questions

What system does this piston plug work with?

This adhesive piston plug works in conjunction with the Simpson Strong-Tie Piston Plug Delivery System, which is designed for dispensing adhesive into drilled holes for threaded rod and rebar dowel installations.

What drilled hole diameter is this plug sized for?

This piston plug is specifically sized to fit a 5/8 in. drilled hole diameter, and the matched tolerance design between the plug and the hole virtually eliminates the formation of voids and air pockets during adhesive dispensing.

Is this plug compatible with all Simpson Strong-Tie adhesives?

Yes, this piston plug works with any Simpson Strong-Tie concrete anchoring adhesive, making it a versatile component across multiple anchoring projects.

How does this plug connect to the extension tubing?

The piston plug features a barbed end that provides a reliable connection to the flexible extension tubing used in the Piston Plug Delivery System.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.