The Simpson Opti-Mesh 10 in. Epoxy Adhesive Plastic Screen Tube for 3/8 in. Rod is a formula-specific anchoring accessory engineered by Simpson Strong-Tie for use exclusively with the SET-3G epoxy adhesive formulation. Designed to support reliable adhesive anchoring in hollow block, brick, and other base materials that contain voids, this screen tube pairs a woven mesh insert with a practical plastic construction to deliver controlled adhesive flow and consistent anchor performance where it matters most.

Key Features

• Integral cap centers the rod and displays drill bit and rod diameter - takes the guesswork out of installation by keeping the rod properly aligned and confirming the correct tooling at a glance.
• Flanges prevent the screen tube from slipping into over-drilled holes - keeps the tube correctly positioned even when the drilled hole is slightly deeper than intended, protecting anchor integrity.
• Formula-specific woven mesh design controls flow of adhesive out of the screen - ensures the SET-3G epoxy distributes evenly and predictably, supporting a consistent bond in void-containing substrates.
• Open-mesh collar allows extra adhesive flow in hollow block applications - accommodates the additional adhesive volume needed to fill voids in hollow block, helping achieve full encapsulation around the rod.
• Plastic construction with woven mesh insert provides the economy of a plastic screen tube with performance superior to both steel screen tubes and competitive plastic screen tubes - delivers a cost-effective solution without sacrificing anchoring reliability.
• Epoxy screen tubes must be used with the SET-3G formulation only - matching the tube to the correct adhesive type is critical to achieving rated performance; this screen is purpose-built for that pairing.

Why This Product

• Purpose-built compatibility with SET-3G epoxy - because screen tubes are formula-specific, using this Opti-Mesh tube with the SET-3G adhesive ensures the mesh design and adhesive flow characteristics work together as intended, reducing the risk of installation error.
• Superior performance in hollow and void-containing base materials - the combination of the woven mesh insert and open-mesh collar makes this screen tube particularly well-suited for hollow block and brick anchoring applications where uncontrolled adhesive flow would otherwise compromise the anchor.
• Practical design details that simplify installation - the integral cap with diameter markings and the flange retention design address two of the most common on-site challenges - rod alignment and tube retention - without requiring additional tools or steps.
• Made in the United States by Simpson Strong-Tie - backed by a manufacturer with a focused product line of adhesive dispensing tools and accessories designed to work together for efficient, reliable adhesive anchor installation.

Specifications

• Model Number (MPN): 3GWS3710P
• Brand: Simpson Strong-Tie
• Compatible Adhesive: SET-3G Epoxy
• Rod Diameter: 3/8 in.
• Hole Size: 9/16 in.
• Length: 10 in.
• Material: Plastic
• Color: Gray
• Packaging: Packs of 1 and Cartons of 100
• Country of Origin: United States

Approved Applications

• Adhesive anchoring in hollow block base materials
• Adhesive anchoring in brick and other void-containing base materials
• Use with SET-3G epoxy adhesive formulation and 3/8 in. threaded rod
• Applications requiring controlled adhesive flow through woven mesh in hollow or voids-present substrates

Frequently Asked Questions

Which adhesive formulation must be used with this screen tube?

This Opti-Mesh screen tube is designed specifically for use with the SET-3G epoxy adhesive formulation. Screen tubes are formula-specific, so epoxy screen tubes must only be used with the SET-3G formulation to ensure proper performance.

What rod diameter and hole size is this screen tube designed for?

This screen tube is designed for a 3/8 in. rod diameter and requires a 9/16 in. drilled hole size in the base material.

Why are screen tubes necessary for adhesive anchoring in hollow block or brick?

Screen tubes are vital to the performance of adhesive anchors in base materials that are hollow or contain voids, such as hollow block and brick. The Opti-Mesh woven mesh insert controls the flow of adhesive out of the screen while the open-mesh collar allows extra adhesive flow in hollow block applications, ensuring a reliable and consistent anchor.

How do the flanges and integral cap improve installation?

The integral cap centers the rod and displays the drill bit and rod diameter for easy reference during installation. The flanges are designed to prevent the screen tube from slipping into over-drilled holes, helping to maintain proper positioning and anchor performance throughout the adhesive dispensing process.

Note: Product dimensions may differ from picture. Please refer to the item description and specifications above for accurate product details.