Although anchors and bolts are both fasteners used to secure connections, they have significant differences in design, purpose, and application. Here are their main differences:
The stress principles are different: anchor bolts allow smooth screws to be stressed through mechanical locks, while bolts mainly produce friction through extrusion, thereby achieving the stress effect.
Different anchoring heights: The height of anchor bolts is generally less than 10D, while the height of bolts needs to be determined according to the strength of the concrete, including different specifications. When using bolts, stress will also be generated when entering the concrete wall. The probability of damage is high and the structure will be unsafe. Bolts cannot be inserted into cracked walls.
Different functions: Anchors are generally used for the installation of some marble or curtain walls as embedded parts, while bolts are generally used for some brick walls, including awning installation and air conditioning installation, to play a fastening role. But if the load exceeds a certain level, it is likely to fall off.
Different divisibility: Anchors connect screw rods to concrete substrates and are indivisible, while bolts are divisible. The head of the anchor bolt is installed inside the concrete, while the head of the bolt is exposed to the outside.
Different usage methods: The use of anchor bolts usually requires using tools such as impact drills to drill holes in the base material, then inserting the anchor bolts into the holes and tightening them with a wrench or power tool. The use of bolts is relatively simple. You usually need to pass the screw rod through the hole between the connecting parts, and then rotate the screw rod to secure the two connecting parts together.
To sum up, there are obvious differences between anchor bolts and bolts in terms of rear anchorage and head shape. Only by having a clear understanding of anchor bolts and bolts can we understand and use them well. Whether it is anchor bolts or bolts, they all play a big role.