Expansion bolts are frequently used to firmly anchor large, heavy objects to walls, floors, and other solid surfaces. They can efficiently manage loads that are both vertical and horizontal. Through a mechanism, the nut on the other end pulls into the shell when the bolt is tightened. The shell extends outward during this process and securely embeds itself into the pre-drilled hole in the wall or floor. By strengthening the anchoring point, this expansion guarantees that the connected object will stay firmly in place even when subjected to heavy loads or strain. In carpentry, building, and other fields where dependable connection to solid surfaces is crucial, expansion bolts are frequently used.
Expansion Bolts Prices
The following are a range of expansion bolts from different brands, along with their fixing hole sizes, fixing thicknesses, and corresponding prices, providing options from ₱385.00 to ₱916.00.
| Details | Fixing Hole | Fixing Thickness | Price |
| RS PRO | 12mm | 10mm | ₱385.00 |
| Mopar | 8mm | 10mm | ₱429.00 |
| Mr. Gasket | 10mm | 12mm | ₱863.00 |
| Grainger | 10mm | 12mm | ₱828.00 |
| Whiteline | 8mm | 10mm | ₱526.00 |
| Te-co | 10mm | 12mm | ₱529.00 |
| Hillman | 12mm | 10mm | ₱916.00 |
Advantages of Expansion Bolts
High Holding Power – Expansion bolts are ideal for fastening big things to solid surfaces like concrete or masonry because they offer a sturdy and dependable hold.
Adaptability – They are versatile and may be used for a variety of purposes, including anchoring equipment, handrails, and shelves. They can support weights that are both vertical and horizontal.
Ease of Installation – With simple equipment, expansion bolts may be installed very quickly. All that’s needed to extend the anchor inside the material is a drilled hole and tightening of the bolt.
Sturdy – Since expansion bolts are made of premium materials like carbon steel or stainless steel, they can endure tough environments and corrosion, guaranteeing their long-term dependability.
Removability – In contrast to some other anchor types, expansion bolts may be changed or removed without causing a great deal of harm to the surrounding material, enabling any necessary modifications or restorations.
Disadvantages of Expansion Bolts
Limited Capabilities for Loads – Although expansion bolts are robust, their usage in some heavy-duty applications may be restricted due to their unique load capabilities, which vary based on the material they are anchored into and the bolt’s size.
Need Precise Installation – Inadequate installation, such as over-tightening or under-sizing the hole, will weaken the holding force and decrease the efficiency of expansion bolts.
Hollow Substances – Plasterboard and hollow bricks are examples of hollow materials that are not a good fit for expansion bolts as they depend on expanding inside solid materials like concrete or masonry.
The Potential for Spalling – When expansion bolts are installed, they may cause the surrounding material to spall or chip, particularly if the drilling is done carelessly or with too much power.
Price – Expansion bolts may initially cost more than certain other kinds of fasteners, especially if they are made of premium materials or require specific versions, which might affect project finances.
Video about Expansion Bolt
FAQs
How do I pick the proper size expansion bolt for my project?
An exact sizing of the expansion bolt requires consulting guidelines or specialists since it depends on elements such as the object’s weight and the material it is being anchored into.
Are expansion bolts compatible with various materials?
It is advised to consult the manufacturer’s requirements to ensure compatibility. While expansion bolts can be used with materials like plasterboard, they are not advised for use with hollow materials like concrete and masonry.
How deep should I drill the hole for an expansion bolt?
The manufacturer’s specific drilling instructions should be followed, and the hole should normally be somewhat deeper than the length of the bolt to guarantee adequate expansion and anchoring.
Can expansion bolts be removed?
In general, expansion bolts can be removed, but the procedure can differ based on the material they’re anchored into and how long they’ve been there. It could also harm the surrounding material when being removed.
What is the maximum weight that an expansion bolt can support?
Manufacturers provide load capacity ratings, which should be closely followed for safe use. The weight capacity of an expansion bolt varies depending on the bolt’s size and type, the material it’s anchored into, and the quality of installation.