Simpson ABL Anchor Bolt Locator with 1 in. Nut is a purpose-built positioning tool 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 delivering consistent, repeatable bolt positioning across every pour. The chair's open geometry is designed for optimum concrete flow, so placement of this locator does not interfere with proper form filling.

Key Features

• Designed for optimum concrete flow - the chair's open profile lets concrete move freely around the assembly, reducing voids and ensuring a solid foundation around each anchor bolt.
• Installs with (2) nails or (2) screws - fast, tool-familiar fastening to the form deck means crews spend less time setting hardware and more time completing the pour.
• Provides 1 in. standoff (clear cover) for anchor bolts - the built-in standoff holds each bolt at the correct embedment depth automatically, removing the guesswork and improving code compliance.
• Compatible with anchor rod diameters from 1/2 in. to 1-1/4 in. across the product line - contractors working on mixed-bolt projects can source the right locator size from a single, consistent product family.
• Sized specifically for 1 in. diameter anchor bolts - a snug, dedicated fit keeps bolts plumb and on layout, reducing costly field corrections after the concrete sets.
• Heavy hex nut made from uncoated steel - the structural heavy-hex profile provides the clamping strength required for anchor bolt applications without adding unnecessary material.
• Chair finished in Galvanized (G90) - the G90 coating protects the steel chair during concrete placement and curing, maintaining structural integrity where moisture is present.

Why This Product

• Eliminates a separate bottom nut - because the heavy-hex nut is already attached to the pre-formed chair, crews skip a fiddly assembly step at the form, cutting layout time and reducing the chance of a misplaced or missing nut before the pour.
• Locks bolt position before concrete is placed - nailing or screwing the chair directly to the deck form keeps anchor bolts exactly on layout while concrete is placed and consolidated, preventing the shift and lean that leads to expensive remediation.
• Electro-galvanized versions available for HDG anchor bolts - when the project calls for hot-dip galvanized anchor bolts, a matching electro-galvanized locator is available, keeping corrosion protection consistent throughout the assembly.
• Made in the United States by Simpson - domestic production under Simpson quality standards means dimensional consistency from piece to piece, so the locator fits the bolt and the form the same way every time.

Specifications

• MPN: ABL8-1
• Brand: Simpson Strong-Tie
• Anchor Bolt Diameter: 1 in.
• Standoff / Clear Cover: 1 in.
• Nut Type: Heavy hex
• Nut Finish: Uncoated steel (none)
• Chair Material: 14 ga. steel
• Chair Finish: Galvanized (G90)
• Installation Method: Installs with (2) nails or (2) screws
• Country of Origin: United States

Frequently Asked Questions

What is the purpose of the ABL8-1 anchor bolt locator?

The ABL8-1 enables the accurate and secure placement of anchor bolts on concrete-deck forms prior to concrete placement. The pre-formed steel chair holds the heavy-hex nut in position, eliminating the need for an additional nut on the bottom of the anchor bolt.

What anchor bolt diameter is the ABL8-1 designed for?

The ABL8-1 is specifically designed for 1 in. diameter anchor bolts. The ABL product line is available for anchor rod diameters ranging from 1/2 in. to 1-1/4 in.

How is the ABL8-1 installed on the concrete-deck form?

The ABL8-1 installs with (2) nails or (2) screws, securing the chair to the form surface before concrete is placed.

Is the ABL8-1 suitable for use with hot-dip galvanized (HDG) anchor bolts?

The standard ABL8-1 features a chair with a G90 galvanized finish and an uncoated steel heavy-hex nut. Electro-galvanized versions are available for use with HDG anchor bolts.

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