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Tapping Screw
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Nuts
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- Other Bolts
Stainless Steel Metal Frame Anchor Sleeve Expansion Anchor Bolts For Window Door
product detail
Description of Metal Frame Anchor
Stainless steel metal frame anchors, also known as window and door frame anchors, sleeve anchors with countersunk head screws, or metal sleeve anchors, are expansion-type anchoring fasteners specifically designed for concrete, masonry, and natural stone substrates. The product mainly consists of an expansion tube, a screw, and a tapered nut. During installation, tightening the screw causes the expansion tube to expand within the substrate, achieving a high-strength mechanical lock.
The product is manufactured using high-quality stainless steel A4-316 or A2-304, conforming to BS EN ISO 3506-1 standards. Metric sizes range from M6 to M16, with lengths from 60mm to 230mm. The product meets ETAG 020 European technical approval standards and is suitable for curtain wall systems, window and door frames, steel structures, and other architectural applications.
As a professional manufacturer and supplier of stainless steel metal frame anchors, we offer a full range of specifications and OEM/ODM non-standard customization services. Direct supply from the source factory, transparent pricing for Metal Frame Anchors, and controllable quality throughout the entire process.
Advantages of Metal Frame Anchor
High-strength anchoring, reliable load-bearing capacity
Stainless steel metal frame anchors achieve high-strength anchoring through mechanical expansion of the expansion tube within the substrate. In C20/25 concrete substrates, a single anchor bolt is recommended to withstand tensile loads up to 2.2 kN and shear loads up to 4.3 kN. Suitable for curtain wall systems and structural fixing with high load-bearing requirements.
Stainless steel construction, corrosion resistant, suitable for harsh environments
Made with high-quality A4-316 or A2-304 stainless steel, offering excellent corrosion resistance and oxidation resistance. A4-316 stainless steel contains molybdenum, providing enhanced resistance to chloride corrosion.
Easy installation, no special tools required
The installation process is simple and efficient—after drilling, insert the anchor bolt and tighten the screw using a standard socket wrench or impact wrench to complete the installation. No special tools or chemical adhesives are required, significantly saving construction time.
Factory Direct Supply, High Cost-Performance Ratio
As a source manufacturer and supplier of Stainless Steel Metal Frame Anchors, we possess complete cold heading, stamping, and assembly production lines. Our direct supply model makes our Metal Frame Anchor prices more competitive, eliminating middlemen and ensuring full quality control.
Quality Inspection
Why choose us as your supplier of Metal Frame Anchor?
Experience
As a professional Stainless Steel Metal Frame Anchor manufacturer with over ten years of experience in the field of Stainless Steel Metal Frame Anchors and anchoring fasteners, we are proficient in domestic and international standards such as ETAG 020, EAD 330747-00-0601, and DIN 18056. Our products are ETAG 020 certified. Our quality has been proven in the global market over a long period, and our products are exported to Europe, North America, Southeast Asia, the Middle East, and other regions.
Customization
We support non-standard customization and OEM/ODM services. We offer free sampling services, with a fast response time of 3-7 days based on drawings or samples. Flexible minimum order quantities, supporting small-batch trial production and large-volume purchases.
Scale
Our daily production capacity is sufficient to meet urgent orders and large-volume supply needs. Our direct-from-source production model ensures more transparent pricing for Stainless Steel Metal Frame Anchors, eliminating middlemen markups and ensuring full quality control throughout the process.
Service
We offer 24/7 online support to address your technical questions and unexpected needs anytime. Choosing us means choosing a trustworthy Stainless Steel Frame Anchor Supplier and a long-term partner.
Production Process
Application of Metal Frame Anchor
Building Curtain Wall and Exterior Wall Systems
Stainless steel metal frame anchors are standard fasteners for building curtain walls and exterior wall systems. They are used for connecting curtain wall joists, stone cladding, aluminum panel curtain walls, and concrete/masonry substrates. The products comply with ETAG 020 curtain wall anchoring standards. The stainless steel material ensures rust-free performance even after long-term outdoor exposure.
Door and Window Frame Installation
Used for the fixed installation of door and window frames. Effectively prevents rainwater from seeping into the interior along the anchors. Stainless steel metal frame anchors are suitable for anchoring the frames of aluminum alloy doors and windows, steel doors and windows, and wooden doors and windows.
Steel Structures and Heavy-Duty Fixing
Used for anchoring steel structure connections, steel beam supports, and equipment foundations. A4-316 stainless steel metal frame anchors are suitable for corrosive environments such as marine engineering and chemical facilities.
Renewable Energy and Outdoor Facilities
Suitable for concrete anchoring of solar photovoltaic brackets, wind power foundations, and communication base stations. Their corrosion resistance and weather resistance make them perform excellently in long-term outdoor exposure environments.
Infrastructure and Public Works
Suitable for infrastructure projects such as bridges, tunnels, subways, and ports. A4-316 metal frame anchors ensure long-term durability in harsh environments, and their fire resistance meets public safety requirements.
Application Diagram
Our Certification
FAQs
Q1: What is the difference between stainless steel metal frame anchors and ordinary expansion anchors?
A: The main difference lies in the structural design and application scenarios. Stainless steel metal frame anchors consist of expansion tubes, screws, and tapered nuts, specifically designed for frame fixing—after installation, the anchor does not pull the components towards the substrate but remains in a "stand-off" position, effectively preventing frame deformation. Furthermore, stainless steel metal frame anchors offer both hexagonal flange and countersunk head options; the hexagonal flange version is waterproof. Ordinary expansion anchors typically only offer a single head type and do not have waterproof functionality. Choosing a professional Stainless Steel Metal Frame Anchor Manufacturer ensures the product is suitable for your specific application scenario.
Q2: How to choose between A2-304 stainless steel and A4-316 stainless steel metal frame anchors?
A: A2-304 stainless steel metal frame anchors contain 18% chromium and 8% nickel, offering good corrosion resistance and are suitable for general indoor environments, dry conditions, and general industrial scenarios, providing high cost-effectiveness. A4-316 stainless steel metal frame anchors, with 2%-3% added molybdenum compared to 304, exhibit significantly better resistance to chloride corrosion than 304. They are particularly suitable for highly corrosive environments such as marine environments, chemical equipment, high-salt-spray areas, and indoor swimming pools. Selection recommendation: A2-304 is generally sufficient for general construction projects; A4-316 is recommended for coastal areas, chemical plants, and sewage treatment plants. Contact Stainless Steel Frame Anchor Supplier for professional selection advice.
Q3: What are the installation steps for stainless steel metal frame anchors? What precautions should be taken?
A: Installation steps: ① Drilling – Use a rotary hammer drill to drill a hole in the substrate matching the anchor diameter. The drilling depth should be at least the same as the total length of the anchor; ② Insertion – Insert the assembled frame anchor (including expansion tube and screw) into the hole; ③ Tightening – Use a socket wrench or impact wrench to tighten the screw until the expansion tube is fully expanded and securely locked. Precautions: Please refer to the technical parameter table for the installation torque. Over-tightening will damage the anchor bolt and reduce its performance. The anchor bolt is designed for "stand-off" position locking and will not pull the component toward the substrate.
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