The Double is a dual expansion machine bolt anchor particularly suited for materials of questionable strength or consistence such as stone. It can be used in solid concrete, block, brick, and stone. Job site tests are recommended when used in base materials of questionable strength or consistence.

Features

• Performs in base material of questionable strength
• Internally threaded anchor for easy removability and service work
• Corrosion resistant body

Specifications

• Type: Shield Expansion Anchor
• Anchor Materials: Zamac Alloy
• Anchor Diameter: 3/8"
• Anchor Length Overall: 2"
• Drill Diameter: 3/4"
• Minimum Hole Depth: 1-3/4"
• Quantity: 50
• Thread Version: UNC Thread
• Suitable Base Materials: Normal-weight concrete, Grout-filled concrete masonry (CMU), Hollow concrete masonry (CMU), Brick masonry, stone
• Approvals & Listings: Tested in accordance with ASTM E488, Federal GSA Specification – Meets descriptive and proof load requirements of CID A-A-1923A, Type 3

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