Heavy-Duty Carbon Steel & Stainless Steel Wedge Expansion Bolts – Zinc-Plated Concrete Anchor Fasteners, M6–M24

Superior pull-out resistance

• – The wedge anchor design features a cold-formed mandrel and specialized expansion clip providing exceptional hold strength in 20 MPa to 50 MPa concrete

Through-bolt installation

• – Allows direct mounting through the fixture, significantly reducing layout and drilling time on the job site

Versatile material range

• – Available in zinc-plated carbon steel for indoor dry conditions, and stainless steel 316 for heavy industrial or coastal installations

Seismic-rated performance

• – Engineered to maintain clamping force under dynamic loads and minor concrete cracking

Controlled torque expansion

• – Standardized torque values ensure full expansion without over-tightening or anchor slip

Ductile carbon steel

• : Q235 or 1008 steel, optimized for cold-heading to prevent brittleness during expansion

Stainless steel

• : 304 (A2) for humid environments; 316 (A4) for chemical plants or saltwater exposure

Electro-zinc plating

• : Clean bright finish with 72-hour salt spray resistance per ASTM B117

Yellow zinc chromate

• : Enhanced moisture resistance for semi-protected areas

Mechanical galvanizing

• : Ideal for high-strength anchors to avoid hydrogen embrittlement risk

Structural steel anchoring

• – Securing columns, beams, and base plates to concrete foundations

Safety installations

• – Mounting handrails, guardrails, and fire escapes in public buildings

Elevator systems

• – High-load fastening of elevator guide rails and bracketry

Warehouse racking

• – Heavy-duty pallet rack anchoring to prevent tipping and collapse

HVAC & plumbing

• – Suspending heavy equipment, pipes, and ductwork from concrete ceilings

Infrastructure

• – Fastening noise barriers and lighting poles on highways and bridges

Direct manufacturing from our Giza facility ensures a 15–30% cost advantage over middle-market wholesale fasteners. Every batch undergoes 100% inspection for thread accuracy and expansion clip tension. With IATF 16949 certification, each wedge anchor meets the rigorous standards required for safety-critical applications. We export to 30+ countries with a 98.5% on-time delivery rate.

Packaging

• : Industrial cartons (25kg) or retail-ready small boxes with installation instructions

Ports

• : Alexandria / Port Said / Damietta, Egypt

Incoterms

• : FOB / CIF / CFR

Lead time

• : Samples in 10–15 days; bulk in 15–25 working days

Q1: Can wedge anchors be used in brick or block?

While primarily designed for solid concrete, they can be used in some solid masonry. For hollow blocks, we recommend our sleeve anchor or chemical anchor solutions.

Q2: Are these anchors reusable?

No, expansion bolts are designed for permanent installation. Once expanded, they cannot be easily removed or reused.

Q3: What drill bit size should I use?

The drill bit diameter must match the anchor diameter exactly — e.g., an M12 anchor requires a 12mm masonry drill bit.

Q4: Do you offer Hot-Dip Galvanized wedge anchors?

Yes, we provide HDG coatings for outdoor infrastructure projects requiring long-term corrosion protection.

Q5: Can you provide samples for pull-out testing?

Yes, we provide samples within 10–15 days so your engineers can conduct site-specific pull-out tests before bulk ordering.