Anchoring Systems Engineered for Structural Integrity

Cracked concrete rating indicates the anchor has been tested and certified to maintain capacity when installed in concrete that develops tension cracks. Most structural concrete eventually develops hairline cracks from shrinkage, loading, or temperature changes. Building codes often require cracked-concrete-rated anchors in tension zones and seismic applications. Screw-Bolt+ anchors carry this certification while many competitors do not.

DeWalt provides load tables showing allowable tension and shear values for each anchor type in various concrete strengths. Start with the required load, apply the safety factor, then select an anchor with capacity exceeding this demand. Consider edge distances, spacing, and whether loading is sustained or cyclic. For structural applications, consult with a licensed engineer who can verify your selection meets code requirements.

AC200+ is a two-component injectable adhesive that bonds threaded rod or rebar into drilled holes in concrete, masonry, and solid rock. The epoxy-based formula achieves high load capacity with excellent performance in both dry and water-filled holes. It is code-compliant for structural connections and provides working time for positioning before full cure. AC200+ handles applications exceeding mechanical anchor capacity limits.

HangerMate+ is designed specifically for rod hanging applications common in MEP and fire protection work. The system installs faster than drilling and setting traditional expansion anchors, with consistent preset torque values eliminating guesswork. For repetitive hanging of threaded rod throughout a building, HangerMate+ significantly reduces installation time while maintaining reliable load capacity.

Seismic design categories C through F require anchors tested for cyclic loading that simulates earthquake conditions. These anchors must maintain capacity through repeated stress reversals without loosening or failing. DeWalt anchors carrying seismic certification have passed these rigorous tests. Using non-certified anchors in seismic zones violates building codes and creates life-safety risks.

Without test data, conservative practice assumes existing concrete at 3,000 PSI for capacity calculations. Core samples tested in a lab provide actual values. Older structures may have stronger concrete than originally specified due to continued hydration over decades. For critical structural anchoring in existing buildings, material testing provides the data needed for accurate engineering.

Anchors near concrete edges have reduced capacity because the concrete cone breakout area is limited. Minimum edge distances prevent this failure mode. Load tables specify reduced capacities for close edge conditions. Attempting to use full rated capacity with insufficient edge distance causes sudden concrete breakout that cannot be predicted by torque values alone. Always verify edge distance compliance before relying on rated loads.

Our technical team assists with product selection for specific applications, providing load tables and installation requirements. For structural connections requiring engineering certification, we work with your design team to provide the data they need. We stock popular anchor sizes and types for immediate availability, with specialty items available by order for larger projects throughout the UAE.