MI20*170 special under-cut anchor bolt is a high-performance structural anchoring component developed for heavy-duty engineering and high-seismic-grade projects. Different from ordinary chemical anchor bolts, this under-cut anchor forms a rigid mechanical lock key with concrete substrate through its unique reverse cone structure, realizing structural anchoring without relying on simple friction or chemical adhesion. It effectively avoids hidden dangers such as aging failure, creep deformation and loose anchoring of traditional anchor bolts.
This M20×170 specification anchor bolt features precise size calibration, standard thread tooth shape and deep and uniform thread pitch, ensuring tight fitting and reliable connection with matched accessories. With reasonable anchoring depth and optimized stress structure, it maintains stable bearing capacity in cracked concrete, high-temperature and humid environments, with low performance discreteness and strong structural safety reserve. The product undergoes integral precision forging and surface anti-corrosion treatment, featuring smooth surface, no burrs, high hardness and strong fatigue resistance.
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