The LD-387 carbon steel zinc wedge anchor is a heavy-duty mechanical anchor designed for high-load fastening in concrete substrates. The anchor consists of a threaded carbon steel stud with a tapered mandrel at the base, a hardened steel expansion clip positioned over the mandrel, and a zinc-plated hex nut and flat washer at the top. When the nut is tightened to the specified torque, the mandrel is drawn upward into the expansion clip, forcing the clip outward against the walls of the drilled hole. This wedging action creates a powerful mechanical interlock that transfers both tension and shear loads directly into the surrounding concrete. The wedge anchor design concentrates the expansion force at a single point near the bottom of the embedment, which maximizes load-bearing capacity and makes it particularly effective for heavy-duty structural applications.

The stud is manufactured from high-strength carbon steel and finished with zinc plating available in yellow zinc chromate or white/blue zinc options, providing reliable corrosion protection for both indoor and outdoor applications. The hardened steel expansion clip is engineered to maintain its shape and grip even under sustained loads and cyclic loading conditions. The hex nut and flat washer are zinc-plated to match the stud, ensuring uniform corrosion protection across the entire assembly. The metric coarse thread on the exposed portion of the stud is compatible with standard nuts and washers, allowing for easy fixture removal and reinstallation without disturbing the anchor embedment. Each anchor is stamped with the diameter and length for easy identification during installation and inventory management.

The LD-387 is offered in diameters from M6 to M24 with lengths from 65mm to 300mm, covering an extensive range of fixture thicknesses and embedment requirements. Minimum embedment depths range from approximately 40mm for M6 anchors to 150mm for M24 anchors, and deeper embedment generally increases load capacity. The wedge anchor is certified by ICC-ES for use in both cracked and uncracked concrete, confirming its suitability for structural applications including seismic zone installations. Recommended installation torque values range from approximately 4 Nm for M6 anchors to 400 Nm for M24 anchors. Installation requires drilling a hole to the specified diameter and depth using a carbide-tipped masonry bit, cleaning the hole thoroughly with a blow-out pump or vacuum to remove dust and debris, driving the anchor into the hole with a hammer until the nut and washer seat firmly against the fixture, and tightening the nut to the specified torque using a calibrated torque wrench.

These wedge anchors are widely used in heavy-duty commercial, industrial, and infrastructure applications where high load capacity is essential. Common installations include securing structural steel columns and base plates to concrete foundations, mounting heavy industrial machinery and production equipment, installing structural connections in commercial buildings, fastening motor bases and pump foundations to concrete pads, anchoring pipe supports and mechanical equipment hangers, and mounting electrical panels and control enclosures. The LD-387 wedge anchor is CE certified, ISO 9001 quality controlled, and ICC-ES evaluated, making it suitable for projects requiring documented load ratings and code compliance. Whether for new construction, retrofit installations, or equipment upgrades, these anchors deliver the reliable heavy-duty performance that professional contractors and structural engineers demand.