The Simpson ABL4-1-OST Anchor Bolt Locator is engineered by Simpson for the accurate and secure placement of 1/2" anchor bolts on concrete-deck forms prior to concrete placement. Featuring a structural heavy-hex OST nut attached to a pre-formed steel chair, this locator is designed specifically for use with HDG (hot-dip galvanized) anchor bolts, streamlining the forming process by eliminating the need for an additional nut on the bottom of the anchor bolt.

Key Features

• Pre-formed steel chair with attached heavy-hex OST nut - eliminates the need for a separate bottom nut, reducing hardware and simplifying bolt placement on concrete-deck forms
• Electrogalvanized OST nut finish - specifically compatible with HDG anchor bolts, ensuring proper corrosion resistance when HDG hardware is specified
• 1" stand height for 1/2" anchor bolt diameter - positions the bolt accurately within the form so it is held securely in place before and during concrete placement
• 14-gauge steel chair with G90 finish - provides a sturdy, corrosion-resistant base that holds the anchor bolt firmly in position throughout the concrete forming process

Why This Product

• Simplifies concrete forming workflows - the integrated chair-and-nut design removes the need for an extra bottom nut, cutting down on parts and saving time during form setup
• Built for compatibility with HDG hardware - the electrogalvanized OST nut is matched to work correctly alongside hot-dip galvanized anchor bolts, making this the right locator when HDG bolts are called out on a project
• Reliable bolt positioning before the pour - the pre-formed steel chair holds the 1/2" anchor bolt at a consistent 1" stand height, helping ensure bolts end up accurately placed once concrete is set
• Domestic construction quality - produced in the United States and engineered by Simpson, a trusted name in structural connectors and concrete forming accessories

Specifications

• Model Number: ABL4-1-OST
• Description: Anchor Bolt Stand 1" High with 1/2" OST Nut
• Anchor Bolt Diameter: 1/2"
• Stand Height: 1"
• Nut Material: Heavy hex
• Chair Material: 14 ga. steel
• Nut Finish: Electrogalvanized
• Chair Finish: G90
• Country of Origin: United States

Frequently Asked Questions

What type of anchor bolt is the ABL4-1-OST designed to work with?

The ABL4-1-OST is specifically designed for use with HDG (hot-dip galvanized) anchor bolts. The electro-galvanized OST nut is compatible with HDG hardware, making it the correct choice when HDG anchor bolts are specified.

What is the purpose of the pre-formed steel chair on this anchor bolt locator?

The structural heavy-hex nut is attached to a pre-formed steel chair, which eliminates the need for an additional nut on the bottom of the anchor bolt. This simplifies installation and ensures the bolt is held securely in position on the concrete-deck form prior to concrete placement.

What size anchor bolt does the ABL4-1-OST accommodate?

The ABL4-1-OST is designed for use with 1/2" diameter anchor bolts, and provides a stand height of 1 inch to properly position the bolt within the form.

What materials and finishes are used in the construction of the ABL4-1-OST?

The nut is a heavy-hex type with an electrogalvanized finish, while the chair is fabricated from 14-gauge steel with a G90 finish, providing corrosion resistance appropriate for use alongside HDG anchor bolts.

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