Simpson ABL Anchor Bolt Locator with 1-1/8 in. Nut is engineered for the accurate and secure placement of anchor bolts on concrete-deck forms prior to concrete placement. The structural heavy-hex nut is attached to a pre-formed steel "chair," eliminating the need for an additional nut on the bottom of the anchor bolt and streamlining the entire setup process. The chair's open design promotes optimum concrete flow, and the locator installs quickly with nails or screws, keeping anchor bolts precisely positioned and held firmly in place before the pour.

Key Features

• Optimum concrete flow design - the open chair geometry lets concrete move freely around the locator, reducing voids and helping ensure a solid, uniform pour.
• Installs with (2) nails or (2) screws - fast, tool-friendly attachment to concrete-deck forms keeps anchor bolts locked in position without complicated hardware or extra fasteners.
• 1 in. standoff (clear cover) - positions the anchor bolt at the correct embedment depth automatically, eliminating guesswork and helping meet cover requirements without additional measuring.
• Integrated heavy-hex nut - the structural nut is pre-attached to the chair, removing the need for a separate bottom nut and reducing parts to manage on the job site.
• Galvanized (G90) steel chair - the G90 coating provides corrosion resistance during and after concrete placement, helping the chair hold up in wet-pour conditions.
• Compatible with anchor rod diameters from 1/2 in. to 1-1/4 in. - the ABL product line covers a wide range of bolt sizes, so crews can standardize on a familiar system across multiple project types.
• Electro-galvanized versions available - for projects using hot-dip galvanized (HDG) anchor bolts, a matching finish option keeps the connection consistent and corrosion-compatible.

Why This Product

• Eliminates an extra component at rough-in - because the heavy-hex nut is already attached to the pre-formed chair, crews skip the step of threading and positioning a separate bottom nut, cutting prep time on the form before the concrete truck arrives.
• Built-in positioning accuracy - the chair holds the anchor bolt at a consistent 1 in. standoff automatically, reducing the risk of misaligned bolts that can delay structural framing and require costly corrections after the pour.
• Domestic manufacturing with proven Simpson engineering - the locator is made in the United States and reflects Simpson's established approach to concrete forming hardware, giving contractors a dependable, familiar product backed by traceable quality.
• Versatile across common anchor bolt applications - with the ABL line covering rod diameters from 1/2 in. to 1-1/4 in., this 1-1/8 in. version fits naturally into a family of compatible locators, making it easy to source one system for varied structural requirements on the same job.

Specifications

• Model Number: ABL9-1
• Bolt/Rod Diameter: 1-1/8 in.
• Nut Type: Heavy hex
• Nut Finish: Uncoated steel (none)
• Chair Material: 14 ga. steel
• Chair Finish: Galvanized (G90)
• Standoff Height: 1 in. clear cover
• Installation Method: Installs with (2) nails or (2) screws
• Country of Origin: United States

Frequently Asked Questions

What is the purpose of the ABL9-1 anchor bolt locator?

The ABL9-1 enables the accurate and secure placement of anchor bolts on concrete-deck forms prior to concrete placement, ensuring bolts are properly positioned and held in place before the pour.

Does this locator require an additional nut on the bottom of the anchor bolt?

No. The structural heavy-hex nut is attached directly to the pre-formed steel "chair," which eliminates the need for an additional nut on the bottom of the anchor bolt.

What bolt or rod diameter does the ABL9-1 accommodate?

The ABL9-1 is designed for a bolt/rod diameter of 1-1/8 in. The ABL product line is available for anchor rod diameters ranging from 1/2 in. to 1-1/4 in.

How is the ABL9-1 installed on the concrete-deck form?

The ABL9-1 installs with (2) nails or (2) screws and is designed for optimum concrete flow once in place, providing a 1-in. standoff (clear cover) for the anchor bolt.

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