


Steel wedge expansion anchor bolts are commonly used when a firm mechanical fixing point is required in concrete or solid base materials. During installation, the anchor expands inside the drilled hole and creates holding force against the base material, helping secure equipment, brackets, frames, supports, and structural accessories.
This product is made from steel and supplied in strength grades 4.8, 6.8, and 8.8. Grade 4.8 is suitable for general-duty fastening and light to medium installation work. Grade 6.8 provides a stronger option for medium-duty fixing needs, while Grade 8.8 is suitable for higher-strength steel fastening applications where better mechanical performance is required.
These wedge anchors are suitable for construction projects, industrial installation, machinery bases, support brackets, warehouse structures, equipment fixing, and other fastening applications where strong anchoring and easy installation are important.

| Item | Specification |
|---|---|
| Brand | Hotop Fasteners |
| Product Type | Wedge Expansion Anchor Bolt / Concrete Anchor Fastener |
| Standard | DIN |
| Place of Origin | Handan, Hebei, China |
| Material | Steel |
| Strength Grade | 4.8 / 6.8 / 8.8 |
| Surface Treatment | Zinc, Plain |
| Size Range | M5-M100 |
| Bolt Length Options | 12 mm, 14 mm, 16 mm, 20 mm, 30 mm, 40 mm, 45 mm, 75 mm, 90 mm, and additional sizes |
| Thickness Range | 1 mm-500 mm |
| Application | Building, Industrial, Machinery |
| Certificate | ISO9001 |
| Sample | Available |
| Customization | Graphic customization, custom packaging, custom logo |
| Packing | Bag / Carton / Pallet |
| Selling Unit | Single item |
| Material / Grade | Type | Recommended Use |
|---|---|---|
| Steel | Main product material | Suitable for concrete fixing, building installation, industrial fastening, and machinery assembly |
| Grade 4.8 | Steel strength grade | Suitable for general-duty installation and standard construction fixing |
| Grade 6.8 | Steel strength grade | Suitable for medium-duty fastening where higher strength than general grade is required |
| Grade 8.8 | High-strength steel grade | Suitable for stronger mechanical fixing, equipment bases, and industrial installation requirements |
Hotop Fasteners steel wedge expansion anchor bolts are suitable for fastening in concrete and solid base materials. They are commonly used in construction, equipment installation, maintenance projects, and industrial assembly where secure anchoring is required.
Common application areas include:
For general indoor or standard construction fastening, zinc surface treatment is a practical choice. For projects where the surface will receive additional processing or where coating is not required, plain steel options can be selected.
Wedge expansion anchor bolts are often used together with matching nuts, washers, and related fastening accessories to form a complete installation system. Hotop Fasteners can supply matching fasteners for project-based purchasing and warehouse stocking.
| Matching Fastener | Function |
|---|---|
| Hex Nuts | Used to tighten and lock the anchor bolt during installation |
| Flat Washers | Help distribute load and protect the contact surface |
| Spring Washers | Help improve anti-loosening performance in vibration-prone assemblies |
| Heavy Hex Nuts | Suitable for stronger fixing requirements and heavy-duty installation |
| Threaded Rods | Suitable for extended fastening and customized construction systems |
| Expansion Anchors | Used for related concrete fixing and installation projects |
| Hex Bolts | Suitable for steel structure, machinery, and equipment assembly |
| U Bolts | Suitable for pipe fixing, support frames, and bracket installation |
The product can be packed by bag, carton, and pallet, depending on order quantity, size, shipping method, and customer requirements. Standard single package information is 30 x 30 x 20 cm, with a single gross weight of 25 kg.
Available packing support includes:
The standard MOQ is 10,000 pieces. Samples are available for checking product size, surface treatment, thread quality, and installation suitability before bulk orders. For customized sizes, special packing, or large-volume orders, customers can provide drawings, required dimensions, surface treatment, grade, quantity, and packing details for quotation.

Q1: What is the product type?
A1: This product is a wedge expansion anchor bolt, suitable for concrete fixing, building installation, industrial fastening, and machinery assembly.
Q2: What material is available?
A2: The confirmed material is steel.
Q3: What strength grades can be supplied?
A3: The available strength grades are 4.8, 6.8, and 8.8.
Q4: What standard does this product follow?
A4: The product follows DIN standard.
Q5: What surface treatments are available?
A5: The available surface treatments are Zinc and Plain.
Q6: What size range is available?
A6: The product size range is M5-M100.
Q7: What bolt lengths are available?
A7: Available bolt length options include 12 mm, 14 mm, 16 mm, 20 mm, 30 mm, 40 mm, 45 mm, 75 mm, and 90 mm, with additional sizes available according to order requirements.
Q8: What thread sizes are available?
A8: Thread size options shown include M3, M3.5, M3.9, M4.8, M5, M6, M6.3, M7, and M14, with additional customized sizes available.
Q9: What applications are these wedge anchors suitable for?
A9: They are suitable for building, industrial, and machinery applications, including concrete fixing, equipment installation, bracket fixing, and structural support assembly.
Q10: What is the MOQ?
A10: The MOQ is 10,000 pieces.
Q11: Can the packaging be customized?
A11: Yes. Hotop Fasteners supports custom packaging, custom logo, and graphic customization.
Q12: What packing methods are available?
A12: Available packing methods include bag, carton, and pallet.
Q13: Is sample service available?
A13: Yes. Samples are available for checking size, material, surface treatment, and installation suitability before bulk purchase.
Q14: Where does Hotop Fasteners supply from?
A14: Hotop Fasteners supplies these wedge expansion anchor bolts from Handan, Hebei, China.
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