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This steel anchor plate bolt is a specialized foundation fastener that combines a high-strength threaded rod with a flat steel plate welded to its lower end. The plate increases the bearing area against the concrete, distributing column loads over a wider surface and reducing the risk of concrete crushing or pullout failure. This design is widely used in steel structure construction where columns must be anchored securely to concrete foundations. Available with rod diameters from M16 to M42 and overall lengths from 800mm to 5000mm, with plate dimensions ranging from 100x100x10mm to 200x200x16mm, this bolt accommodates a broad range of column sizes and load conditions. The assembly is manufactured from structural steel grades including Q235B and Q345B, with hot-dipped galvanized finish for corrosion resistance. While standard Anchor Bolts rely on bent geometry for anchoring, the plate-type design achieves its holding capacity through the large bearing surface of the welded plate.
The manufacturing process includes precise welding of the plate to the threaded rod, with careful control of weld quality and geometry to ensure structural integrity under load. The rod is thread-rolled for accurate fit with standard heavy hex nuts. The completed assembly is hot-dipped galvanized to provide long-term corrosion protection. Quality control includes weld inspection, dimensional verification, coating thickness measurement, and straightness checks. Anchor plate bolts are commonly used for steel column base connections, equipment foundation anchoring, bridge substructure elements, and large steel grid structures. The plate configuration ensures even load transfer into the concrete, preventing point stress that could compromise foundation integrity. In projects where L-type anchor bolt and 9-shaped anchor bolt are specified for lighter applications, this plate bolt provides the enhanced load distribution needed for heavier structural connections.
Installation involves placing the assembly in the formwork before concrete pouring, with the plate positioned at the correct depth below the finished surface. The plate must be leveled to ensure proper load distribution and column alignment. For critical applications, templates are often used to maintain accurate bolt positioning. Once concrete has cured, the exposed threaded rods provide a ready connection point for steel column base plates. Umbrella-type anchor bolt offers a different load distribution geometry, while the plate bolt provides a flat bearing surface that is particularly suitable for column base connections. Custom plate sizes and rod lengths can be produced to meet specific project requirements, ensuring the anchor matches the column base plate dimensions precisely. The product delivers consistent performance across a wide range of structural applications, from light industrial buildings to heavy infrastructure projects.
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Main Product:
Anchor Bolts ,
L-type Anchor Bolt,
Foundation Embedded Anchor Bolts,
Umbrella-type Anchor Bolt,
General Fasteners,
Light Pole Anchor Cage
