The DeWALT ANCHORS & FASTENERS Power-Stud+ SD1 Hex Nut Carbon Steel 1/2" x 10" is a fully threaded, torque-controlled wedge expansion anchor engineered for consistent performance in both cracked and uncracked concrete. Zinc plated for durability, this heavy-duty concrete fastener is built with a carbon steel body and expansion clip, making it a reliable choice for structural anchoring applications in normal-weight concrete, sand-lightweight concrete, concrete over steel deck, and grouted concrete masonry.

Key Features

• Fully threaded, torque-controlled wedge expansion design - delivers consistent, repeatable holding performance in high and low strength concrete without guesswork during installation
• Nominal drill bit size matches the anchor diameter - simplifies tool selection, reduces setup time, and minimizes the chance of installation errors on the job site
• Designed for installation through standard fixture holes - allows anchoring directly through the connected material without requiring hole enlargement or special fixtures
• Length ID code and identifying marking stamped on the head of each anchor - enables fast visual verification of correct anchor selection and traceability in the field
• Anchor design allows for follow-up expansion after setting under tensile loading - maintains reliable holding strength even as loads are applied, adding an extra margin of performance confidence
• Zinc plated carbon steel body and expansion clip - provides a corrosion-resistant surface finish suitable for interior concrete and masonry applications
• Hex nut head style with included nut and washer - provides a standard, tool-compatible connection point that speeds up installation with common wrenches and impact tools

Why This Product

• Engineered for both cracked and uncracked concrete - this anchor does not require you to avoid cracked zones, giving you more flexibility when anchoring into existing concrete structures where crack location cannot always be controlled
• Compatible with a wide range of base materials including sand-lightweight concrete and concrete over steel deck - making it a versatile single fastener choice across varied construction and retrofit applications
• Nut and washer are included with the anchor - reducing the need to source separate hardware and helping ensure the connection assembly is complete right out of the package
• A torque-controlled setting mechanism means expansion is driven by applied torque rather than relying on impact alone - resulting in more predictable, uniform anchorage that supports quality installation practices

Specifications

• Brand: DeWALT
• Product Type: Wedge Bolt
• Primary Material: Carbon Steel
• Plating / Finish: Zinc Plated
• Color / Finish: Silver
• Diameter: 1/2 in.
• Fastener Length: 10 in.
• Head Style: Hex Nut
• Thread Type: Standard
• Connection Design: Concrete & Masonry
• Design Type: Hex
• Weight: 0.502 lb
• Country of Origin: China

Available Pack Options

• 7428SD1-PWR: 25 Pk
• 7428SD1-PWR -4P: 100 Pk

Approved Applications

• Normal-weight concrete - suitable for standard structural and non-structural anchoring in cast-in-place or precast concrete
• Sand-lightweight concrete - approved base material for anchoring in lightweight concrete floor and wall systems
• Concrete over steel deck - designed for use in composite slab-on-deck construction common in commercial and industrial buildings
• Grouted concrete masonry - suitable for use in grouted CMU walls and structural masonry assemblies

Frequently Asked Questions

What base materials is the Power-Stud+ SD1 approved for use in?

This wedge expansion anchor is designed for use in normal-weight concrete, sand-lightweight concrete, concrete over steel deck, and grouted concrete masonry. It is suitable for both cracked and uncracked concrete conditions.

What drill bit size is required to install this anchor?

The nominal drill bit size is the same as the anchor diameter - for this 1/2 in. anchor, a 1/2 in. drill bit is used. This simplifies tool preparation and reduces the risk of mismatched hole sizing during installation.

Does this anchor come with a nut and washer?

Yes, a nut and washer are included with the anchor, providing everything needed to complete the hex nut connection without sourcing additional hardware separately.

How does this anchor maintain holding strength after installation?

The Power-Stud+ SD1 features an anchor design that allows for follow-up expansion after setting under tensile loading. This means the anchor can continue to expand in response to applied load, helping maintain reliable anchorage over time in both cracked and uncracked concrete.