Mindoub 50 Pack 3/8" x 6" Flat Head Sleeve Anchors, Industrial Grade Zinc Plated Expansion Bolts for Large Masonry Projects, Flush Finish Concrete Anchor Bolt Kit

Mindoub 50 Pack 3/8" x 6" Flat Head Sleeve Anchors, Industrial Grade Zinc Plated Expansion Bolts for Large Masonry Projects, Flush Finish Concrete Anchor Bolt Kit

• 【Efficient Through-Fixing Installation】Featuring a "bit-size equals bolt-size" design, these 3/8" x 6" sleeve anchors allow you to drill directly through your fixture and into the masonry. This streamlined, one-step process eliminates the need for moving heavy equipment or re-aligning holes, saving significant time on the job site.
• 【Low-Profile Flush Finish】The countersunk flat-head design ensures a clean, professional appearance by sitting perfectly flush with the mounting surface once tightened. This is a critical safety feature for high-traffic areas like garage floors, patios, or walkways, effectively eliminating trip hazards common with traditional protruding hex-head bolts.
• 【360° Uniform Expansion Grip】The full-length expansion sleeve distributes pressure evenly across the entire circumference of the hole. This superior load distribution minimizes localized stress on the substrate, making them a reliable choice for solid concrete, brick, or masonry blocks without risking surface cracks or blowouts.
• 【Corrosion-Resistant Zinc Plating】Constructed from high-strength carbon steel and finished with a heavy-duty zinc coating. These fasteners are engineered to withstand oxidation and environmental moisture, providing long-lasting structural integrity for both dry indoor workshop shelving and humid outdoor installations.
• 【Professional Contractor-Grade Packs】Available in 25 and 50-count configurations to suit project-specific needs. Whether you are anchoring perimeter fencing, heavy machinery, or structural post bases, these bulk packs ensure you have the consistent hardware required to complete large-scale builds without interruption.
• 【Note】Designed for securing wood or metal fixtures TO concrete and masonry. Not for use in wood-to-wood applications.