The Simpson Opti-Mesh 10 in. Epoxy Adhesive Plastic Screen Tube is engineered specifically for use with the ET-3G epoxy formulation, delivering reliable adhesive anchor performance in hollow or void-containing base materials such as hollow block and brick. Simpson Strong-Tie developed this screen tube with a formula-specific woven mesh insert that outperforms both steel screen tubes and competitive plastic screen tubes, giving installers the economical benefit of a plastic tube without sacrificing load capacity or consistency.

Key Features

• Integral cap centers the rod and displays drill bit and rod diameter - ensures correct rod positioning and gives installers an at-a-glance reference during setup, reducing placement errors on the job.
• Flanges prevent the screen tube from slipping into over-drilled holes - keeps the screen tube properly positioned even when the hole depth exceeds the target, protecting anchor integrity without extra effort from the installer.
• Formula-specific woven mesh design controls flow of adhesive out of the screen - precisely meters adhesive distribution so coverage is consistent and waste is minimized across every installation.
• Uniform coverage of adhesive on the rod results in higher loads than for rods installed with standard screen - means anchors achieve greater holding strength, making this screen tube the right choice for structural and load-bearing applications.
• Open-mesh collar allows extra adhesive flow in hollow block applications - accommodates the voids and cavities common in hollow block substrates, ensuring the adhesive fills the anchor zone completely for a secure bond.
• Epoxy screen tubes must be used with ET-3G formulation only - this adhesive-specific compatibility ensures the mesh geometry and flow characteristics are matched to the epoxy chemistry, protecting performance and safety.

Why This Product

• Superior performance at a plastic price point - the Opti-Mesh woven mesh insert delivers higher anchor loads than both steel screen tubes and competitive plastic screen tubes, so buyers get better results without paying a premium for metal alternatives.
• Purpose-built for hollow base materials - the open-mesh collar and controlled adhesive flow work together to properly distribute epoxy within hollow block and brick, addressing the exact challenge that makes screen tubes necessary in void-containing substrates.
• Designed to prevent costly installation mistakes - the integral cap that displays drill bit and rod diameter, combined with flanges that stop the tube from slipping into over-drilled holes, gives installers built-in safeguards that protect the quality of every anchor set.
• Made by Simpson Strong-Tie for use with their ET-3G system - choosing a screen tube engineered to match the specific adhesive formulation means the mesh design, adhesive flow rate, and coverage are all optimized together, rather than relying on a generic screen that may compromise anchor performance.

Specifications

• Model Number (MPN): EWS3710P
• Brand: Simpson Strong-Tie
• Compatible Adhesive: ET-3G (Epoxy)
• Rod Diameter: 3/8 in.
• Hole Size: 9/16 in.
• Length: 10 in.
• Material: Plastic
• Packaging: Packs of 1 and Cartons of 100
• Country of Origin: United States

Frequently Asked Questions

What adhesive formulation is the EWS3710P screen tube designed to be used with?

The EWS3710P Opti-Mesh screen tube is designed specifically for use with the ET-3G epoxy formulation. Screen tubes are adhesive-specific, and epoxy screen tubes must only be used with the ET-3G formulation to ensure proper performance.

Why is a screen tube necessary when using adhesive anchors 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 and properly distributes the adhesive around the rod within the hollow cavity, enabling the anchor to achieve its full load capacity.

How does the Opti-Mesh design improve performance compared to standard screen tubes?

The Opti-Mesh screen tube features a formula-specific woven mesh design that precisely controls the flow of adhesive out of the screen. This results in uniform coverage of adhesive on the rod, which produces higher loads than rods installed with a standard screen. It also outperforms both steel screen tubes and competitive plastic screen tubes.

What prevents the EWS3710P from slipping into an over-drilled hole during installation?

The EWS3710P is equipped with flanges that prevent the screen tube from slipping into over-drilled holes. Additionally, the integral cap centers the rod and displays the required drill bit and rod diameter to help ensure proper installation from the start.

Note: Product dimensions may differ from picture. Please refer to the specifications listed above for accurate product dimensions.