The DeWALT ANCHORS & FASTENERS Power-Stud+ SD1 5/8" x 4-1/2" Wedge Expansion Anchor is a fully threaded, torque-controlled wedge expansion anchor engineered for consistent, reliable performance in both cracked and uncracked concrete. Manufactured with a zinc plated carbon steel body and expansion clip, this hex nut wedge bolt delivers dependable holding strength across a variety of base materials - making it a go-to choice for structural concrete fastening and masonry connection applications. A nut and washer are included with each anchor, so you have everything needed for a complete installation right out of the box.

Key Features

• Fully threaded, torque-controlled wedge expansion design - ensures consistent setting performance in both high and low strength concrete, reducing installation variability on the job site
• Zinc plated carbon steel body and expansion clip - provides a durable, corrosion-resistant finish suited for interior concrete and masonry applications
• Nominal drill bit size matches the anchor diameter - simplifies tool selection and speeds up installation by eliminating the need for a separate, oversized bit
• Anchor can be installed through standard fixture holes - allows for through-fixture installation without pre-positioning, saving setup time and improving accuracy
• Length ID code and identifying marking stamped on the hex nut head - makes it easy to verify the correct anchor is installed during inspection and quality control checks
• Anchor design allows for follow-up expansion after setting under tensile loading - helps maintain holding capacity even after the anchor experiences load, adding a measure of safety to structural connections
• Compatible with cracked and uncracked concrete base materials - gives engineers and contractors confidence for use in seismic and general structural applications where cracking cannot be ruled out

Why This Product

• Designed for performance in cracked concrete - unlike standard wedge anchors, the Power-Stud+ SD1 is engineered to maintain holding strength even where concrete cracking is present, making it suitable for demanding structural and seismic applications
• Broad base material compatibility - works in normal-weight concrete, sand-lightweight concrete, concrete over steel deck, and grouted concrete masonry, reducing the need to stock multiple anchor types for different substrate conditions
• Follow-up expansion capability under tensile load - the anchor continues to expand as load is applied, helping preserve connection integrity over time and under real-world loading conditions
• Hex nut head with stamped ID markings - simplifies post-installation inspection and code compliance verification, an important advantage on projects where anchor identification must be documented

Specifications

• Brand: DeWALT
• Product Type: Wedge Bolt
• Diameter: 5/8 in.
• Fastener Length: 4.5 in.
• Head Style: Hex Nut
• Thread Type: Standard
• Primary Material: Carbon Steel
• Fastener Plating: Zinc
• Finish: Silver
• Connection Design: Concrete and Masonry
• Design Type: Hex
• Weight: 0.436 lb
• Country of Origin: China

Available Pack Options

• 7432SD1-PWR: 25 Pk
• 7432SD1-PWR -4: 100 Pk

Approved Applications

• Normal-weight concrete - suitable for standard structural concrete fastening applications
• Sand-lightweight concrete - compatible with lighter-weight concrete mixes used in floor and deck systems
• Concrete over steel deck - approved for composite deck assemblies where anchoring through concrete into metal deck systems is required
• Grouted concrete masonry - appropriate for masonry walls and block construction where grout fills the core

Frequently Asked Questions

Can this anchor be used in cracked concrete?

Yes. The Power-Stud+ SD1 is specifically engineered for consistent performance in both cracked and uncracked concrete, making it appropriate for applications where concrete cracking cannot be ruled out, including seismic and structurally sensitive installations.

What drill bit size do I need to install this anchor?

The nominal drill bit size is the same as the anchor diameter. For this 5/8 in. anchor, you would use a 5/8 in. drill bit, simplifying tool selection and ensuring a properly sized hole for correct wedge expansion.

Does this anchor include a nut and washer?

Yes. A nut and washer are included with the anchor, providing everything required for a complete installation without the need to source additional hardware separately.

What does "follow-up expansion" mean and why does it matter?

The Power-Stud+ SD1 anchor design allows the expansion clip to continue expanding after the anchor is set, even as tensile loading is applied. This means the anchor can maintain and even improve its grip under real-world load conditions, helping to preserve connection integrity over time rather than relying solely on the initial setting torque.

Note: The image displayed is a generic representation of the type of product. Product dimensions and/or thread length may differ from the picture.