

Carbon steel wedge expansion anchors are designed for fastening fixtures directly into solid concrete. They are widely used where strong pull-out resistance, stable installation, and reliable mechanical anchoring are required.
The anchor normally includes a threaded anchor body, expansion clip, nut, and washer. During installation, the anchor is inserted into a drilled hole in concrete. When the nut is tightened, the wedge section pulls upward and the expansion clip presses against the wall of the hole, forming a secure mechanical lock inside the concrete.
This product is listed as a carbon steel wedge expansion anchor and through bolt concrete wedge anchor. Carbon steel provides practical strength for construction and industrial fastening, while the zinc plated / galvanized finish helps improve corrosion resistance for general indoor, construction, and light outdoor applications.
These anchors are suitable for fixing machinery, structural supports, steel plates, brackets, handrails, racks, pipe supports, cable trays, and other fixtures to concrete foundations or concrete walls.
| Item | Specification |
|---|---|
| Product Type | Through bolt concrete wedge anchor / expansion anchor |
| Material | Carbon steel |
| Grade | 4.8/6.8/8.8 |
| Standard | DIN |
| Surface Treatment | Zinc plated / galvanized |
| Anchor Structure | Threaded anchor body with expansion wedge, nut, and washer |
| Installation Base | Solid concrete |
| Function | Mechanical expansion anchoring |
| Application | Construction, machinery fixing, steel structure installation, equipment base fixing, concrete fastening |
| Installation Method | Through-fixing into pre-drilled concrete holes |
| Compatible Fastening Use | Concrete base plates, brackets, supports, railings, racks, fixtures |
| Customization | Size, packaging, and bulk order requirements can be customized |
| Brand | Hotop Fasteners |
| Origin | Handan, Hebei, China |
Carbon steel wedge expansion anchors are widely used for:
These anchors should be used in solid concrete. They are not recommended for hollow brick, hollow block, lightweight block, or weak base materials unless confirmed by project testing.
Correct hole diameter, embedment depth, edge distance, spacing, and torque should be selected according to the working load and project requirement.

The wedge expansion structure creates a firm mechanical grip inside solid concrete.
Carbon steel provides reliable strength for construction and industrial fastening.
The zinc plated / galvanized finish helps improve surface durability and corrosion resistance.
The anchor can be installed through the fixture directly into concrete, making installation efficient.
Suitable for steel structures, machinery, brackets, railings, pipe supports, and other concrete-mounted fixtures.
Q1: What is this product?
A1: This product is a carbon steel wedge expansion anchor, also known as a through bolt concrete wedge anchor.
Q2: What material is used?
A2: The product is made from carbon steel.
Q3: What surface treatment does it have?
A3: The surface treatment is zinc plated / galvanized.
Q4: Is there a specific grade listed?
A4: No separate mechanical grade is clearly listed on the page. The confirmed material specification is carbon steel.
Q5: What base material is suitable for wedge anchors?
A5: Wedge anchors are mainly used in solid concrete.
Q6: Can this anchor be used in hollow brick or hollow block?
A6: Wedge anchors are generally designed for solid concrete. Hollow or weak base materials should be tested or evaluated before use.
Q7: What is included in a wedge anchor assembly?
A7: A typical wedge anchor includes the threaded anchor body, expansion clip, nut, and washer.
Q8: What is the zinc plated finish used for?
A8: Zinc plating helps protect the carbon steel surface and improves resistance to general corrosion.
Q9: What information should be confirmed before ordering?
A9: Buyers should confirm anchor diameter, length, material, finish, quantity, packaging, concrete condition, and load requirement.
Q10: Can packaging be customized?
A10: Yes. Bulk packaging, carton packaging, pallet packaging, and customer packaging requirements can be arranged.
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