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Anchor Bolts What Is It
Oct 24, 2017

There are many concepts in the project we are relatively easy to confuse, that similar reinforcement methods, such as planting bars and anchors, in fact, the effect is indeed bad days, what is the bolt? What is a bolt? What are the differences and links between the two?


Bolts are bolts that are part of a mechanical part and consist of a head and a screw. They need to be used in conjunction with a nut for fastening and connecting two parts with through holes. Bolts have many names, some people call screws, fasteners, screw nails. Bolts are due to the object of the slope of the circular rotation and friction of the mathematical principles and principles of physics, step by step fastening tool tools. Classification of bolts: according to the connection of the force points: ordinary, with hinge hole; according to the shape of the head classification: hexagonal head, round head, square head, countersunk head, etc .; according to the length of the thread classification: Full thread, non-full thread; according to the type of thread classification: coarse teeth, fine teeth; according to the performance is divided into 3.6,4.8,5.6,5.8,8.8,9.8,10.9,12.9 eight grades; according to the bolt production accuracy is divided into A , B, C three levels.


An anchor is an anchoring component that anchors the connector to the substrate. It is divided into mechanical anchors and chemical anchors. The source is JGJ145-2013 "Technical specification for post-concrete anchoring of concrete structures". Anchor anchored base material is divided into reinforced concrete, prestressed concrete or concrete concrete components; not as anchoring substrate, including: frozen and thawed concrete, corrosion damaged concrete, severe cracked concrete, non-dense concrete. Chemical anchors are a new type of metal fastening material, rented by chemicals and metal rods. Chemical anchor is a new type of anchor after the expansion bolt, through a special chemical adhesive, the screw cementation fixed in the concrete substrate drilling, in order to achieve the fixed anchor composite. Chemical anchor is divided into ordinary chemical anchor and special inverted cone chemical anchor. Recommended chemical anchor: HM-200 chemical anchor

Product characteristics Anti-fatigue, anti-aging, corrosion-resistant, no creep; strong adhesion, high pull force, the same effect with the embedded; use a wide temperature range, -10 ℃ ~ 40 ℃ can be applied; Non-intumescent chemical bonding force, does not destroy the substrate; construction is convenient, fast, safe and environmentally friendly. It is suitable for all kinds of substrate, concrete, rock plate, aluminum, etc .; Application of various types of curtain wall bracket fixed: can be used for glass, stone, aluminum curtain wall and various types of composite curtain wall steel stent, base, keel fixed; fixed machinery and equipment; steel structure and concrete structure connection fixed; chemical pipeline, equipment Pipeline, crane track and other construction equipment. Mechanical anchor is the use of anchors and anchor holes between the role of the formation of anchor bolts, according to its working principle is divided into two categories: expansion bolts, intumescent anchor. According to the "expansion of concrete, expansion of the end of the building anchor" provides that the mechanical anchor material should be carbon steel, alloy steel, stainless steel or high corrosion-resistant stainless steel, according to environmental conditions and durability requirements.

Differences and links between bolts and bolts

1, the bolt is a bolt in the form of a connection, there are many types of bolts connected 2, the bolt is the screw part and the concrete substrate through a certain form of fixed together can not be separated, removable only Nuts; and bolts, the nut from the bolt on the spin down, you can separate the two parts, are detachable connection. 3, the anchor is a post-anchor technology, the need for drilling, and then screw into the anchor; bolts are pre-hole. 4, the bolt is buried in the concrete base material, and the bolt is the head of the words outside the summary of the bolt and bolt: anchor bolt is one of the form of connection.

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