The Simpson Opti-Mesh 10 in. Epoxy Adhesive Plastic Screen Tube for 1/2 in. Rod is engineered specifically for use with the SET-3G epoxy adhesive formulation, making it an essential accessory for anchoring applications in hollow block, brick, and other base materials that contain voids. Simpson Strong-Tie developed the Opti-Mesh line with a woven mesh insert that delivers the cost efficiency of a plastic screen tube while outperforming steel screen tubes and competitive plastic screen tubes - giving contractors a reliable, formula-matched solution for adhesive anchor installations that demand consistent, controlled adhesive flow.

Key Features

• Integral cap centers the rod and displays drill bit and rod diameter - keeps the rod properly aligned during installation and provides an at-a-glance size reference, reducing setup errors on the job.
• Flanges prevent the screen tube from slipping into over-drilled holes - maintains correct positioning even when hole depth exceeds the target, protecting anchor integrity without extra adjustment.
• Formula-specific woven mesh design controls flow of adhesive out of the screen - ensures the SET-3G epoxy disperses evenly around the rod for a consistent, fully developed bond.
• Open-mesh collar allows extra adhesive flow in hollow block applications - compensates for voids in the base material so the epoxy fills the cavity effectively, supporting reliable load transfer where solid substrate is absent.
• Designed exclusively for use with SET-3G formulation - pairing the correct epoxy screen tube with its matched adhesive is critical to anchor performance; this tube is engineered to work with SET-3G and must not be substituted with other adhesive types.

Why This Product

• Superior performance at a practical price point - the Opti-Mesh woven mesh insert gives this plastic screen tube an edge over steel screen tubes and competing plastic options, delivering stronger adhesive anchor results without the cost premium of metal construction.
• Purpose-built for void-containing base materials - the open-mesh collar and controlled-flow mesh design work together to address the specific challenges of anchoring into hollow block and brick, where standard installation methods fall short.
• Precision-matched to SET-3G epoxy systems - the formula-specific design means the mesh controls adhesive flow in a way that complements SET-3G chemistry directly, supporting the full performance potential of the epoxy anchor system.
• Engineered details that reduce installation mistakes - the integral cap with drill bit and rod diameter markings combined with flanges that prevent over-insertion give installers built-in guides that promote correct placement and reduce costly rework.

Specifications

• Model Number (MPN): 3GWS5010P
• Brand: Simpson Strong-Tie
• Compatible Adhesive: SET-3G
• Rod Diameter: 1/2 in.
• Hole Size: 3/4 in.
• Length: 10 in.
• Material: Plastic
• Color: Gray
• Packaging: Packs of 1 and Cartons of 50
• Country of Origin: United States

Approved Applications

• Hollow block base materials requiring adhesive anchor support
• Brick and other void-containing base materials
• Anchoring applications utilizing SET-3G epoxy adhesive with 1/2 in. threaded rod

Frequently Asked Questions

What adhesive is this screen tube compatible with?

This Opti-Mesh screen tube is specifically designed for use with the SET-3G epoxy adhesive formulation. Screen tubes are formula-specific, and epoxy screen tubes must only be used with SET-3G. Using the wrong screen tube with a different adhesive formulation can compromise anchor performance.

Why are screen tubes necessary for hollow block or brick applications?

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 within the drilled hole, allowing it to properly cure around the rod and form a reliable bond even where there is no solid material to retain the adhesive on its own.

What prevents the screen tube from falling into an over-drilled hole?

The Opti-Mesh screen tube features flanges specifically designed to prevent the screen tube from slipping into over-drilled holes, keeping it properly positioned during adhesive injection and rod installation.

What rod diameter and hole size does this screen tube accommodate?

This screen tube is designed for a 1/2 in. rod diameter and requires a 3/4 in. hole size. The integral cap centers the rod during installation and also displays the appropriate drill bit and rod diameter for easy reference on the job site.

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