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Made of alloy structural steel and subjected to strict heat treatment processes, the tensile strength is ≥ 1200MPa, the yield strength is ≥ 1080MPa, and the core hardness reaches 39-44HRC.
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Specially designed bolts for friction type connections in steel structures.
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The larger head size provides a larger force surface for the wrench, making it easier to tighten and disassemble.
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The head can sink into the interior of the workpiece, providing a clean and smooth connection surface, saving space.
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The substrate can be 4.8 to 8.8 grade carbon steel bolts, and the surface is treated with electroplating zinc and rainbow passivation.
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Mainly made of 304 (A2-70) or 316 (A4-80) stainless steel, it has excellent corrosion resistance and is suitable for humid and corrosive environments such as chemical, food, medical, and marine industries.
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Made of high-quality medium carbon steel that has undergone quenching and tempering treatment.
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Made of low-carbon steel, with a tensile strength of ≥ 400MPa and a yield strength of ≥ 320MPa, it has good toughness and plasticity.
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