Simpson ABL Anchor Bolt Locator with 7/8 in. Nut is a precision-engineered anchor bolt positioning device built to ensure the accurate and secure placement of anchor bolts on concrete-deck forms prior to concrete placement. A 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 simplifying the entire setup process. The chair's open geometry is designed for optimum concrete flow, making this locator a dependable choice for contractors who need consistent bolt alignment on every pour.

Key Features

• Designed for optimum concrete flow - the open chair profile allows concrete to move freely around the assembly, reducing voids and ensuring a solid pour around each anchor bolt.
• Installed with nails or screws - quick, tool-common fastening to the form means the locator stays firmly in position before and during concrete placement, with no specialized hardware required.
• Provides 1 in. standoff (clear cover) for anchor bolts - the built-in standoff height holds the bolt at the correct elevation, delivering consistent concrete cover beneath the bolt every time.
• Fits 7/8 in. anchor bolt diameter - sized specifically for 7/8 in. anchor rods, giving you a secure, wobble-free fit that keeps bolts plumb and on layout.
• Heavy hex nut made from uncoated steel - the structural-grade heavy hex nut replaces the bottom nut typically needed, reducing hardware count and speeding up anchor bolt installation.
• Chair: Galvanized (G90) - the G90 galvanized steel chair resists corrosion during outdoor form work and concrete placement, protecting the assembly until the concrete sets.
• Available for anchor rod diameters from 1/2 in. to 1-1/4 in. - the ABL series covers a wide range of rod sizes, so you can standardize on one system across multiple bolt diameters on the same job site.

Why This Product

• Eliminates a hardware step on every bolt - because the heavy-hex nut is pre-attached to the steel chair, there is no need to thread and position a separate bottom nut, cutting layout time and reducing the chance of missed or misplaced hardware during a pour.
• Keeps anchor bolts accurately located before concrete is placed - the chair fastens directly to the concrete-deck form with just two nails or screws, locking each bolt in position and preventing the costly shifting or misalignment that leads to rework after the slab cures.
• G90 galvanized chair stands up to the job site environment - the corrosion-resistant chair holds up through wet concrete contact and outdoor conditions, giving you confidence that the locator will perform correctly from form setup through strip time.
• Straightforward sizing for 7/8 in. anchor rods - this model is purpose-built for 7/8 in. bolt diameters, so there is no adapting or improvising; the fit is precise, the standoff is fixed at 1 in., and the result is repeatable, code-compliant anchor bolt placement on every application.

Specifications

• MPN: ABL7-1
• Brand: Simpson Strong-Tie
• Bolt/Rod Diameter: 7/8 in.
• Standoff Height: 1 in.
• Nut Type: Heavy hex
• Nut Finish: Uncoated 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 ABL7-1 anchor bolt locator?

The ABL7-1 enables the accurate and secure placement of anchor bolts on concrete-deck forms prior to concrete placement, ensuring bolts are positioned correctly before the concrete is poured.

Does the ABL7-1 require an extra nut on the bottom of the anchor bolt?

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

How is the ABL7-1 installed on the form?

The ABL7-1 installs with (2) nails or (2) screws, securing the locator firmly to the concrete-deck form prior to concrete placement.

What standoff distance does the ABL7-1 provide for the anchor bolt?

The ABL7-1 provides a 1-in. standoff (clear cover) for anchor bolts, ensuring the proper concrete cover beneath the bolt head during placement.

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