{"id":5525,"date":"2026-06-05T10:00:42","date_gmt":"2026-06-05T01:00:42","guid":{"rendered":"https:\/\/ohtavn.com\/?post_type=media&p=5525"},"modified":"2026-06-03T20:10:19","modified_gmt":"2026-06-03T11:10:19","slug":"what-is-an-anchor-bolt","status":"publish","type":"media","link":"https:\/\/ohtavn.com\/en\/media\/what-is-an-anchor-bolt\/","title":{"rendered":"What is an anchor bolt? \uff5cEasy explanation in 3 minutes"},"content":{"rendered":"
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Introduction<\/h3>\n<\/div>\n
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“Anchor bolts” are indispensable for installing machine tools in factories and maintaining the structure of buildings. These parts, which firmly connect equipment and structures to concrete floors or foundations, are truly the “unsung heroes” of the manufacturing site. However, if appropriate selection or installation is not performed, there is a risk of serious accidents such as overturning during earthquakes or equipment detachment. In fact, data shows that a high percentage of construction defects related to structural hardware are found during inspections of new construction, making correct knowledge the cornerstone of safety management.<\/p>\n<\/div>\n

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In this article, we will explain everything from basic types of anchor bolts to the concept of strength calculation and installation points to note on-site, in content that can be read in 3 minutes for procurement and maintenance personnel in the manufacturing industry. Please use this for your company’s safety measures together with the procurement solutions provided by Ohta Vietnam.<\/p>\n<\/div>\n

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Basic Knowledge of Anchor Bolts<\/h3>\n<\/div>\n
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Anchor bolts are a general term for bolts that are embedded in a base material (mainly concrete) and use their tensile strength and shear strength to fix an object. Their fixing principles are mainly classified into the following three types.<\/p>\n<\/div>\n

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  1. Friction fixation<\/strong>: A part of the anchor opens and fixes by the frictional force pressed against the hole wall (common in metal types).<\/li>\n
  2. Adhesion fixation<\/strong>: Fixing the bolt and the hole wall together with the bonding force of resin (adhesive) (Chemical Anchor).<\/li>\n
  3. Shape fixation<\/strong>: Embedded before concrete placement, fixed by the curved tip (L-shape\/J-shape) hooking into the concrete (Foundation Bolt).<\/li>\n<\/ol>\n<\/div>\n
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    Representative Types and How to Choose<\/h3>\n<\/div>\n
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    Anchors handled at manufacturing sites are largely divided into “Cast-in-place anchors” and “Post-installed anchors”.<\/p>\n<\/div>\n

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    Cast-in-place Anchors (Foundation Bolts)<\/h4>\n<\/div>\n
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    This type is installed before pouring concrete. They are L-shaped or J-shaped, and have the highest structural strength and excellent reliability. They are used for foundations of large machinery and fixing pillars of buildings. At Ohta Vietnam, production and supply in custom sizes based on drawings are possible.<\/p>\n<\/div>\n

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    Post-installed Anchors<\/h4>\n<\/div>\n
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    This type is installed after drilling holes in existing concrete floors. They are frequently used for factory layout changes and fixing additional equipment.<\/p>\n<\/div>\n

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