Meet the Hillman 5/8 in. D x 4 in. L Steel Round Head Strike Anchor — a purpose-built masonry fastener designed for securing heavy fixtures directly into concrete. This 10-pack boxed set ships ready to install, with a corrosion-resistant steel body and a round head that offers a clean, finished look for both functional and visible installations.
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Size and fit: 5/8 in. diameter with a 4 in. length; minimum embedment of 3 in. for solid anchoring
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Material and design: Steel construction with a round head for a neat appearance and even load distribution
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Hole and drive: Requires a 5/8 in. drill hole; screw included is 4 in. long to reach the correct depth
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Packaging: Boxed in a 10-pack, ready for multiple mounting projects
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Performance: Rated capacity up to 745 pounds in appropriate concrete conditions (actual load varies with concrete type and embedment)
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Thread and compatibility: High/low thread design to improve bite in both hard and soft concrete, enhancing hold with the included screw
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Application: Specifically engineered for concrete applications—ideal for brackets, fixtures, and hardware mounts
How it works — The anchor is inserted into a clean, pre-drilled 5/8 in. hole in solid concrete. As you drive the included 4 in. screw, the anchor expands behind the concrete to create a secure, high-load connection. The result is a dependable mounting point that resists pull-out and maintains fixture alignment over time.
Practical use cases — This strike anchor is well-suited for:
- Mounting heavy brackets, conduit supports, or cable trays to concrete floors or walls
- Securing sign posts, handrails, or electrical panels where a robust, long-lasting anchor is required
- Installing machinery or equipment mounts in industrial or workshop settings
Why choose this Hillman strike anchor? It combines a durable steel round-head design with a precise 5/8 in. hole requirement and a generous 4 in. screw length, delivering strong, stable anchorage in concrete. The 3 in. minimum embedment ensures you’re driving the anchor deep enough to maximize grip, while the high/low thread pattern provides reliable engagement across a range of concrete strengths. This isn’t a one-size-fits-all wall plug—it’s a purpose-built solution for masonry mounting that you can trust for everyday projects and demanding installs alike.
Installation quick reference
- Mark the mounting location and drill a 5/8 in. hole to the required depth in solid concrete
- Remove debris from the hole to ensure clean seating
- Insert the strike anchor into the hole
- Drive the included 4 in. screw to expand the anchor behind the concrete until securely seated
- Attach your bracket or fixture and verify level and alignment
With the Hillman 5/8 in. D x 4 in. L Steel Round Head Strike Anchor, you gain a reliable, long-lasting mounting solution that blends straightforward installation with strong performance in concrete environments. A smart choice for contractors, DIYers, and professionals tackling masonry projects that demand steadiness and precision.
