Closed Anchor 10-24 – Heavy-Duty Stone & Masonry Fasteners (Box of 100)
Secure undermount sinks and heavy masonry fixtures with absolute confidence and heavy-duty hold.
When mounting undermount sinks to granite, quartz, or marble countertops, failure is not an option. The Closed Anchor 10-24 provides an exceptionally reliable, high-strength solution for securely fastening hardware into natural stone, engineered slabs, masonry, and concrete. Engineered for ultimate structural integrity and simple installation, these brass expansion anchors flare out inside the drilled hole as the bolt is tightened, locking down your clips and brackets permanently.
Why Professional Installers Count on these Closed Anchors:
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The Fabricator's Choice for Sinks: The industry-standard 10-24 internal threading is perfectly tailored for undermount sink clips, vanity brackets, and custom stone installations.
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Flawless Mechanical Hold: Once set, the anchor expands uniformly against the internal walls of the stone, delivering a firm, unyielding grip that easily supports heavy sinks and water loads.
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Exact Fabrication Specs: Engineered for precise shop or job-site prep—simply use a 3/8" diamond core bit to drill a hole to a 9/16" depth for optimal anchoring performance.
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Contractor Bulk Packaging: Shipped in a durable box of 100 units, offering a highly cost-effective option that keeps your install trucks fully stocked and ready for high-volume kitchen and bath remodeling projects.