The Simpson Adhesive Retaining Cap for 5/8-inch Anchors by Simpson is a plastic cap engineered to make overhead, upwardly inclined, and horizontal adhesive anchor installations more reliable and precise. Fitted over the drilled hole opening, it prevents anchoring adhesive from running out during installation while simultaneously centering the threaded rod or rebar dowel for accurate placement - a critical advantage wherever exact anchor positioning is required. Compatible with any Simpson Strong-Tie anchoring adhesive, these caps are well-suited for deep embedment applications and can also be used in conjunction with the Simpson Strong-Tie Piston Plug Delivery System.

Key Features

• Slit design allows the insert to pass through while containing adhesive in the hole - lets you drive the rod or dowel into place without losing the adhesive you need for a secure bond.
• Centers the threaded rod or rebar dowel during insertion into the drilled hole - ensures precise anchor placement so fasteners land exactly where the layout requires, reducing costly rework.
• Designed for overhead, upwardly inclined, and horizontal orientations as well as deep embedments - gives installers a single versatile cap that handles the most demanding installation angles and depths.
• Works with any Simpson Strong-Tie anchoring adhesive - broad compatibility means no guesswork when pairing with your existing adhesive system on the jobsite.
• Compatible with the Simpson Strong-Tie Piston Plug Delivery System - integrates seamlessly into a complete adhesive anchor workflow for faster, cleaner installations.

Why This Product

• Solves the overhead adhesive problem - by physically containing the adhesive inside the hole, the cap prevents the drip-and-waste issue that makes overhead and inclined anchor work frustrating and unreliable.
• Built-in centering means consistently accurate anchors - the cap automatically guides the rod or dowel to the center of the hole, which is especially valuable in structural and precision applications where misalignment is not an option.
• Broad orientation and depth coverage in one product - whether the installation is overhead, angled, horizontal, or involves deep embedment, a single cap design covers the full range, simplifying what you stock and carry to the job.
• Universal adhesive compatibility keeps procurement simple - because these caps work with any Simpson Strong-Tie anchoring adhesive, there is no need to match cap SKUs to specific adhesive products, saving time when planning and ordering supplies.

Specifications

• MPN: ARC62A-RP25
• Brand: Simpson Strong-Tie
• Anchor / Bolt / Rod Diameter: 5/8 in.
• Hole Diameter: 11/16 in.
• Drill Bit Diameter: 11/16 in.
• Material: Plastic
• Packaging: Packs of 25 and Cartons of 200
• Country of Origin: United States

Approved Applications

• Overhead adhesive anchor installations where adhesive containment is critical
• Upwardly inclined anchor installations
• Horizontal adhesive anchor installations
• Deep embedment applications requiring precise rod or dowel centering
• Applications using the Simpson Strong-Tie Piston Plug Delivery System

Frequently Asked Questions

What is the purpose of the slit on the adhesive retaining cap?

The slit in the cap allows the threaded rod or rebar dowel insert to pass through the cap during installation while still containing the anchoring adhesive inside the drilled hole, preventing it from running out.

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

No. 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 the adhesive cure time.

Which adhesives are compatible with the ARC62A-RP25 retaining cap?

The ARC62A-RP25 works with any Simpson Strong-Tie anchoring adhesive, offering broad compatibility across the Simpson Strong-Tie adhesive anchor product line.

Can the ARC62A-RP25 be used with the Simpson Strong-Tie Piston Plug Delivery System?

Yes. ARC retaining caps may be used in conjunction with the Simpson Strong-Tie Piston Plug Delivery System, making them a versatile component within a complete adhesive anchor installation setup.

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 installing in overhead orientations.