The Simpson Opti-Mesh 3-1/2 in. Acrylic Adhesive Plastic Screen Tube for 3/8 in. Rod from Simpson is an essential accessory for adhesive anchor installations in base materials that are hollow or contain voids, such as hollow block and brick. Designed specifically for use with AT-XP acrylic adhesive, this plastic screen tube features a woven mesh insert that controls adhesive flow and promotes consistent, reliable curing around the anchored rod - delivering superior performance compared to both steel screen tubes and competitive plastic screen tubes, while maintaining an economical advantage.

Key Features

• Integral cap centers the rod and displays drill bit and rod diameter - eliminates guesswork at the jobsite, helping ensure the correct setup every time without referencing separate documentation.
• Flanges prevent the screen tube from slipping into over-drilled holes - keeps the tube properly positioned even when hole depth varies, protecting anchor integrity and reducing installation errors.
• Formula-specific woven mesh design controls flow of adhesive out of the screen - ensures the right amount of adhesive is distributed around the rod for a consistent, high-strength bond in hollow or void-containing substrates.
• Open-mesh collar allows extra adhesive flow in hollow block applications - accommodates the unique demands of hollow block and brick, where standard screen designs can restrict adhesive distribution and compromise anchor performance.
• Acrylic screen tubes must be used with AT-XP - this formula-specific compatibility ensures the mesh design is optimized for AT-XP adhesive chemistry, so the anchor system performs as engineered and tested.

Why This Product

• Engineered for hollow and void-containing base materials - the Opti-Mesh design with its woven mesh insert and open-mesh collar makes this screen tube a purpose-built solution for anchoring in hollow block and brick, where adhesive containment and flow control are critical to a reliable anchor.
• Plastic construction with performance that rivals steel - the Opti-Mesh plastic screen tube delivers superior results compared to steel screen tubes and competitive plastic alternatives, offering a cost-effective option without sacrificing anchoring performance.
• Built-in installation safeguards reduce costly mistakes - the integral cap and rod-centering design, combined with flanges that prevent the tube from slipping into over-drilled holes, help contractors and installers achieve correct placement consistently, even under demanding field conditions.
• Guaranteed adhesive system compatibility - matched specifically to AT-XP acrylic adhesive, this screen tube is part of a tested, coordinated anchoring system, giving installers confidence that every component is working together as intended.

Specifications

• Manufacturer Part Number (MPN): AWS373P
• Brand: Simpson Strong-Tie
• Compatible Adhesive: AT-XP
• Bolt/Rod Diameter: 3/8 in.
• Hole Size: 9/16 in.
• Length: 3 1/2 in.
• Material: Plastic
• Packaging: Packs of 1 and Cartons of 150
• Country of Origin: United States

Frequently Asked Questions

What adhesive is this screen tube compatible with?

This acrylic screen tube is specifically designed for use with Simpson Strong-Tie AT-XP adhesive. Acrylic screen tubes must be used with AT-XP, as screen tubes are designed for a specific adhesive type and are not interchangeable across different adhesive formulas.

What rod diameter does the AWS373P screen tube accommodate?

The AWS373P is designed for a 3/8 in. rod diameter, and requires a 9/16 in. drilled hole to properly seat the screen tube.

Why is a screen tube 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 screen tube contains the adhesive and allows it to properly cure around the rod, ensuring a strong, reliable anchor in these challenging substrates.

How does the Opti-Mesh design improve performance over standard plastic or steel screen tubes?

The Opti-Mesh screen tube features a formula-specific woven mesh design that controls the flow of adhesive out of the screen, and an open-mesh collar that allows extra adhesive flow in hollow block applications. This combination provides superior performance compared to both steel screen tubes and competitive plastic screen tubes, while retaining the economical advantage of a plastic construction.

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