The Simpson Adhesive Piston Plug for 1-3/8 in. Hole Diameter is a precision-engineered component of the Simpson Piston Plug Delivery System, purpose-built for dispensing adhesive into drilled holes during threaded rod and rebar dowel installations. Its 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 whether the work involves overhead, upwardly inclined, horizontal, deep embedment, or submerged (underwater) concrete conditions. A barbed end provides a reliable connection to the flexible extension tubing, and each plug is sold in a pack of 10 for job-site convenience.

Key Features

• Model number embossed on each plug - makes it easy to confirm you have the correct plug on the job site, reducing the risk of installation errors.
• Matched tolerance design - virtually eliminates voids and air pockets during adhesive dispensing, so anchors cure with consistent adhesive coverage and full load-transfer performance.
• Designed for multiple installation orientations and embedment depths - works overhead, upwardly inclined, horizontally, at deep embedments, and in submerged concrete conditions, covering a wide range of structural anchoring applications.
• Compatible with any Simpson concrete anchoring adhesive - gives contractors flexibility to use the piston plug across different adhesive systems without needing separate delivery components.
• Sized specifically for 1 3/8 in. drilled holes - the precise fit maintains the tight tolerance required for proper adhesive displacement and void-free placement.
• Barbed end connection point - provides a reliable, secure attachment to flexible extension tubing so adhesive is directed accurately to the bottom of the drilled hole.
• Plastic construction - lightweight and easy to handle, keeping the overall delivery system manageable without sacrificing the dimensional accuracy the piston plug system depends on.

Why This Product

• Engineered for void-free adhesive placement - the matched tolerance fit between the plug and the drilled hole is specifically designed to eliminate air pockets, which directly supports the structural integrity of threaded rod and rebar dowel anchors.
• Versatile across demanding installation conditions - from overhead concrete to fully submerged environments, this piston plug is built to handle orientations and conditions that standard dispensing methods struggle to address reliably.
• Broad adhesive system compatibility - works with any Simpson concrete anchoring adhesive, meaning it integrates into existing workflows without requiring a dedicated adhesive product, reducing procurement complexity.
• Clear on-plug identification - the embossed model number on each plug helps crews quickly verify the right component is in use, supporting quality control on projects where multiple plug sizes may be present.

Specifications

• MPN: PP137-RP10
• Brand: Simpson Strong-Tie
• Hole Diameter: 1-3/8 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 concrete applications
• Submerged (underwater) concrete conditions

Frequently Asked Questions

What is the purpose of the Simpson PP137-RP10 Adhesive Piston Plug?

The PP137-RP10 Adhesive Piston Plug works in conjunction with the Simpson Strong-Tie Piston Plug Delivery System to dispense adhesive into drilled holes for threaded rod and rebar dowel installations. Its matched tolerance design virtually eliminates the formation of voids and air pockets during adhesive dispensing.

What drilled hole diameter is this piston plug sized for?

This piston plug is specifically sized to fit a 1-3/8 in. drilled hole diameter.

Can this piston plug be used in overhead or submerged concrete installations?

Yes. The PP137-RP10 is designed for use in a variety of installation orientations and embedment depths, including overhead, upwardly inclined, horizontal, deep embedment, and submerged (underwater) concrete conditions.

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

Yes. The PP137-RP10 works with any Simpson Strong-Tie concrete anchoring adhesive, making it a versatile component within the Simpson Strong-Tie Piston Plug Delivery System.

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