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Red Head Stainless Steel Large Diameter Tapcon 3/8 X 2-1/2-Inch Inch Anchor is a high performance anchor that cuts its own threads into concrete. The anchor bodies are made of hardened stainless steel. The anchors have a finished hex washer head with anti-rotation serrations to prevent anchor back-out, and the head of the anchor is stamped with a length identification code for easy inspection. The anchors should be installed with carbide tipped hammer drill bits made in accordance to ANSI B212.15-1994. Use standard ANSI bits instead of proprietary bits, which will reduce the chances for anchor failure due to incorrect bit usage, and will cut costs. The Large Diameter anchors install in less than half the time of wedge anchors or adhesive anchors, by simply drilling a pilot hole and drive the LDT anchor by hand or impact. They remove easily, no torching or grinding required to remove anchors. The Red Head anchors have a single piece design, no nut and washer to assemble, and more threads for better thread engagement and higher pullout resistance. The Large Diameter Tapcon anchors have closer edge/spacing distance than mechanical anchors, and higher loads in shallow embedments. Specs: Anchor Diameter - 3/8 inch; Socket Size - 9/16; Drill Bit Diameter - 5/16 inch; Effective Length - 2-1/2-Inch inch; Max. Thickness of Material to be Fastened - 1 inch.
DC Reviewer
Reviewed in the United States on July 15, 2023
These use a 5/16 drill bit. I used a standard 20v Dewalt impact driver to screw 64 of these into the concrete and it worked pretty easily. I'd definitely purchase again.
Douglas B. Firestone
Reviewed in the United States on May 21, 2022
good bolts
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