Simpson ARC50A-RP25 Adhesive Retaining Cap for 9/16 in. Hole Diameter is a plastic anchoring accessory from Simpson Strong-Tie engineered to make overhead, upwardly inclined, and horizontal adhesive anchor installations more reliable and precise. By sealing the mouth of the drilled hole, this retaining cap prevents anchoring adhesive from running out during rod or rebar dowel insertion, while simultaneously centering the anchor for accurate placement - making it an essential component wherever consistent embedment depth and rod alignment are critical.

Key Features

• The slit in the cap allows the insert to pass through while containing the adhesive in the hole
• The cap centers the threaded rod or rebar dowel during insertion into the drilled hole
• Designed for overhead, upwardly inclined and horizontal orientations as well as deep embedments
• Works with any Simpson Strong-Tie anchoring adhesive
• Hole diameter: 9/16 in.
• Drill bit diameter: 9/16 in.
• For 1/2 in. anchor

Specifications

• Brand: Simpson Strong-Tie
• Model: ARC50A
• Material: Plastic
• Bolt/Rod Diameter: 1/2 in.
• Hole Diameter: 9/16 in.
• Drill Bit Diameter: 9/16 in.
• Packaging: Packs of 25 and Cartons of 200
• Country of Origin: United States

Approved Applications

• Overhead adhesive anchor installations where adhesive retention is required
• Upwardly inclined anchor installations
• Horizontal adhesive anchor installations
• Deep embedment applications requiring precise rod or rebar dowel centering
• Use in conjunction with the Simpson Strong-Tie Piston Plug Delivery System

Frequently Asked Questions

How does the adhesive retaining cap prevent adhesive from running out of the hole?

The cap is placed at the mouth of the drilled hole and features a slit that allows the threaded rod or rebar dowel to pass through while creating a seal that contains the anchoring adhesive inside the hole during installation. This is especially important in overhead and upwardly inclined orientations where gravity would otherwise cause the adhesive to run out before it cures.

Can this retaining cap support the weight of the anchor during the adhesive cure time?

No. Simpson Strong-Tie adhesive retaining caps are not designed to support the weight of the anchor. For overhead installations, it is advisable to provide an adequate means of anchor support during cure time to ensure a proper and safe installation.

Is this cap compatible with all Simpson Strong-Tie anchoring adhesives?

Yes. The ARC50A retaining cap works with any Simpson Strong-Tie anchoring adhesive, and it may also be used in conjunction with the Simpson Strong-Tie Piston Plug Delivery System for added installation convenience.

What anchor and hole sizes is the ARC50A compatible with?

The ARC50A is designed for use with a 1/2 in. anchor (threaded rod or rebar dowel) installed into a 9/16 in. diameter hole drilled with a 9/16 in. drill bit. The cap centers the rod within the hole to ensure precise anchor placement during installation.

Note: Adhesive retaining caps are not designed to support the weight of the anchor in overhead installations. It is advisable to provide an adequate means of anchor support during cure time when performing overhead anchor installations.