The DeWALT ANCHORS & FASTENERS Power-Stud+ SD1 Hex Nut Carbon Steel Wedge Expansion Anchor (5/8" x 6") is a fully threaded, torque-controlled wedge bolt engineered for consistent, reliable performance in both cracked and uncracked concrete. With a zinc plated carbon steel body and expansion clip, this wedge expansion anchor is a trusted solution for concrete and masonry fastening applications where dependable holding strength is essential. Whether you are anchoring structural components to normal-weight concrete, sand-lightweight concrete, concrete over steel deck, or grouted concrete masonry, this anchor delivers predictable results even in variable concrete conditions.

Key Features

• Consistent performance in high and low strength concrete - gives installers confidence across a wide range of concrete conditions without requiring different anchor types for different substrates
• Nominal drill bit size matches the anchor diameter - simplifies tool selection and reduces the chance of drilling errors, speeding up the installation process
• Anchor can be installed through standard fixture holes - allows the fixture to remain in place during installation, eliminating the need to remove and reposition components
• Length ID code and identifying marking stamped on the head of each anchor - makes it easy to verify the correct anchor is in use on the job site without referencing packaging
• Anchor design allows for follow-up expansion after setting under tensile loading - provides an added margin of safety by maintaining clamping force as the anchor experiences load
• Zinc plated carbon steel body and expansion clip - the plating provides a layer of corrosion resistance while the carbon steel construction delivers strong mechanical performance
• Nut and washer included - the complete fastener assembly is ready to use straight from the package, reducing the need to source additional hardware separately

Why This Product

• Rated for both cracked and uncracked concrete - many expansion anchors are only approved for uncracked concrete, but this wedge bolt is specifically designed to perform in cracked concrete as well, making it suitable for a broader range of real-world structural conditions
• Compatible with multiple base materials - normal-weight concrete, sand-lightweight concrete, concrete over steel deck, and grouted concrete masonry are all listed suitable substrates, reducing the need to stock multiple anchor types for different job conditions
• Fully threaded design with hex nut head style - the standard thread configuration and hex nut format work with common installation tools, supporting efficient and straightforward on-site fastening
• Follow-up expansion capability under tensile loading - this engineered design feature helps maintain connection integrity over time as loads are applied, making it well-suited for applications where long-term holding strength matters

Specifications

• Brand: DeWALT
• Product Type: Wedge Bolt
• Diameter: 5/8 in.
• Fastener Length: 6.0 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: 0.544 lb
• Country of Origin: China

Available Pack Options

• 7434SD1-PWR: 25 Pk
• 7434SD1-PWR -3: 75 Pk

Approved Applications

• Normal-weight concrete - structural fastening where solid concrete is the base material
• Sand-lightweight concrete - suitable for lighter concrete mixes used in certain elevated slab and deck applications
• Concrete over steel deck - commonly used in commercial construction where a concrete topping is poured over a metal deck substrate
• Grouted concrete masonry - appropriate for masonry walls where grouted cells provide a solid concrete-like anchor point
• Cracked and uncracked concrete - the anchor is engineered to perform reliably regardless of whether the concrete substrate has developed cracks due to loading or curing

Frequently Asked Questions

Can this anchor be used in cracked concrete?

Yes. The Power-Stud+ SD1 is specifically designed for consistent performance in both cracked and uncracked concrete, making it appropriate for structural applications where concrete cracking may occur over time.

What drill bit size should I use to install this anchor?

The nominal drill bit size is the same as the anchor diameter, which is 5/8 in. This simplifies tool selection and helps ensure a properly sized hole for reliable expansion and holding strength.

Does this anchor come with a nut and washer?

Yes. A nut and washer are included with the anchor, so the complete fastener assembly is ready for installation without requiring separately sourced hardware.

What base materials is this anchor rated for?

Suitable base materials include normal-weight concrete, sand-lightweight concrete, concrete over steel deck, and grouted concrete masonry. The anchor is not limited to a single substrate type, which makes it versatile across common construction scenarios.