Stainless Steel Heavy Duty Expansion Hook Bolt Multifunctional Concrete Sleeve Anchor with Open/Closed Eye

Name: Multifunctional Expansion Hook Anchor Bolt
Material: High Strength Carbon Steel / 201 Stainless Steel / 304 Stainless Steel
Standards: ETAG 001、GB/T 22795
Grade: Carbon Steel: 4.8 / 8.8, Stainless Steel: A1-50 (201) / A2-70 (304)
Specifications: M6, M8, M10, M12, M14, M16 (Length is usually 60mm - 200mm, customizable)
Surface Treatment: Carbon Steel: Environmentally friendly color zinc / blue-white zinc / hot-dip galvanized, Stainless Steel: Electrolytic polished / natural color (Natural)
Design Features: Diverse top hook designs, powerful expansion mechanism, large-surface flange nuts, multi-material high corrosion resistance, and a complete range of stepped specifications.
Applications: Home appliance suspension, indoor and outdoor hoisting systems, industrial and warehousing facilities, billboard and curtain wall construction, plumbing and piping engineering.
Delivery Time: 15-30 days after receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available
Packaging: Boxed/Bulk/Pallet or customized packaging
OEM: Available

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Key Features

Our multifunctional expansion hook anchor bolts (pull‑burst hook anchors) are made of carbon steel (Grades 4.8/8.8), 201 or 304 stainless steel (A1-50/A2-70). The top offers diverse hook designs: closed ring, open hook, eye ring, V‑hook, etc. – catering to various suspension needs. The powerful expansion mechanism – tightening the nut forces the cone to expand the sleeve against the bore wall, creating reliable anchorage. The large‑area flange nut prevents loosening and slipping. Sizes M6‑M16, lengths 60‑200mm custom. Suitable for appliance suspension, indoor/outdoor hoisting, billboard/curtain wall construction, and plumbing. Installation: drill → clean hole → insert anchor → tighten nut.

Precision Manufacturing Process

We use a cold heading + hot forging + thread rolling composite process. Hook head: carbon steel is hot die forged in one stroke (dedicated dies for each hook type); stainless steel uses precision casting. The expansion sleeve is multi‑station cold headed; the cone is CNC turned. Threads are high‑speed rolled (6g accuracy). Carbon steel parts undergo mesh belt furnace quenching + tempering (Grade 8.8: HRC 22-32); stainless steel is solution treated and passivated. Surface finishing: carbon steel – yellow/blue‑white zinc (72h salt spray) or hot‑dip galvanizing (≥50μm); stainless steel – electrolytic polishing. Each batch is sampled for tensile strength, expansion performance (ETAG 001 Annex B), and salt spray testing.

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Transparency & Customization

Each carton of anchors comes with a full inspection report (material spectroscopy, hardness, tensile strength, salt spray duration). The package QR code traces back to the forging heat number, cold heading machine, and assembly line. Our website shows load test videos and typical failure cases (e.g., hook deformation, sleeve cracking).

Customization options: Accept non‑standard hook shapes (bending angle/length), ring inner diameter, shank length, and thread tolerances. Material can be 316 stainless steel or alloy steel (Grade 10.9). Surface treatment offers “marine grade” hot‑dip galvanizing or Dacromet. Hook styles can include safety latches, rubber sleeves, or insulating coatings. Mixed standards (ETAG/GB/DIN/ANSI) supported. Matching installation wrenches available. Minimum order quantity: 5,000 pieces; sample lead time 10 days. Upload a drawing for a 24‑hour DFM analysis and quotation.

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Eye Bolt Anchor · Multiple Hooks · Strong Expansion

Carbon steel or 304 stainless steel expansion eye bolt. Top hook options: closed ring, open hook, eye ring, V-hook. Strong expansion mechanism locks upon tightening. Large flange nut prevents loosening. For appliance hanging, overhead lifting, signboard mounting. Sizes M6-M16, length customizable.

product details

JGD Service

Manufacturing Process

• Multi Station Cold Heading Technology

• Intelligent Heat Treatment System

• Micron-Level Thread Rolling Process

• Fully Automatic Optical Sorting

• Environmentally Friendly Surface Treatment Line

• Metallographic And Mechanical Joint Laboratory

Quality Control System

• Raw Material Source Locking

• Furnace Number Batch Full Traceability

• Third Party Material Certification

• Process Parameters Open And Transparent

• Salt Spray Test Real Time Monitoring

• International Standard Compliance Declaration

Flexible Customization Capability

• Customizable head/slot Shapes

• Extreme Application Of Special Materials

• Breakthroughs In Extra Large/Long Specifications

• Integrated Assembly Of Components

• Customizable Surface Treatment Colors

• Personalized Packaging And Labeling

Technical Service

• On-Site Failure Analysis

• Selection Calculation And BOM Optimization

• Installation Tool Selection Guidance

• Inventory Management (VMI) Trusteeship

• Free Sample Making And Testing

• International Standard Translation And Interpretation

Multi-Material Corrosion Protection for All Environments

Available in carbon steel (yellow/zinc/hot-dip galvanized), 201 or 304 stainless steel (A1-50/A2-70). Carbon steel with multi-layer zinc plating suits dry indoor and general construction; 304 stainless steel offers excellent salt-spray resistance for coastal outdoor, damp basements, or chemical plants. Choose the right material for any environment – ensuring hooks stay rust-free, won't become brittle, and guarantee safe suspension.

Diverse Top Hooks – One Anchor for Multiple Needs

Offered in closed ring, open hook, eye ring, V-hook, and more – one anchor, many uses. Closed rings suit rope hanging, open hooks enable quick attachment/removal, eye rings fit chains or wire ropes, V-hooks are designed for pipes and cables. All hooks are cold-formed with no cracks or internal defects – they won't deform or break under load, meeting diverse needs from appliance hoisting to signboards and pipe fixing.

Powerful Expansion Anchoring – Rock-Solid Load Capacity

The built-in cone expands the sleeve as the nut is tightened, with expansion wings gripping the concrete hole wall firmly – delivering high tensile & shear strength (Grade 8.8 ≥800MPa). The large flange nut provides anti-loosening and slip resistance against vibration. Proven in destructive tests, the ultimate pullout force in concrete far exceeds similar products. Withstands both static and dynamic loads without shifting or sinking – ensuring absolute safety for overhead suspended items.

Factory Environment

High-Quality Stainless Steel Self-Tapping Screw Display

Precision Fastening, Engineered for the Future – Sichuan Jingguda Fasteners Co., Ltd., Your Trusted High-Quality Fastener Expert

Sichuan Jingguda Fasteners Co., Ltd. is a professional fastener manufacturer integrating R&D, production, and sales. We specialize in high-precision, high-strength bolts, nuts, washers, and non-standard customized fasteners, covering international standards such as GB, DIN, ISO, ANSI, and ASME. Equipped with multi-station cold heading machines, high-speed thread rolling machines, fully automated heat treatment lines, and surface treatment equipment, we also operate an in-house laboratory featuring spectrometers, hardness testers, tensile testing machines, and salt spray testers to ensure strict quality control from raw materials to finished products. Our products are widely used in industrial machinery, renewable energy, automotive manufacturing, rail transportation, and more, known for their precision, corrosion resistance, and durability. Committed to “Fast Delivery, Professional Support,” we provide one-on-one customized solutions and efficient logistics, striving to be your ideal partner for reliable connections.

Industrial Capabilities

• Factory Area: 8,000 square meters

• Certifications: ISO, IATF, CE, RoHS, JIS, ASTM

• Manufacturing : 70+ internationally advanced production lines

• Testing: 30+ sets of precision quality testing equipment

• Annual Output: Up to 50,000,000 tons

From Raw Material to Finished Product

Our business offers entirely automatic production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and eco-friendly surface finishing, enabling closed-loop manufacture from raw material to final product. Every fastener exceeds high criteria for strength, precision, and surface quality thanks to inline optical sorting and a digital MES. Your assurance of high-quality fasteners: they are stable, functional, and environmentally friendly.

Innovation Lab:

Expertise and teamwork drive us ahead, continually exploring novel solutions. Do you have a project? Now let's begin.

The Complete Process of Collaborative R&D: From "Pain Point Diagnosis" to "Customized Implementation"

We provide more than just standard parts. Our diversified engineering staff actively engages in your project from the outset. By accurately assessing the application environment, we customize solutions immediately in the lab, seamlessly linking technology and application to ensure creative concepts are promptly turned into practical solutions that lower total lifecycle costs.

Integrated Verification System: Ensuring Innovation with "Test Data"

Innovation goes beyond the drawing board. Using our in-house technical center, we provide one-stop verification from corrosion testing to prototype development. Through thorough simulated working condition tests, we use empirical data to confirm the performance stability of customized solutions. This significantly reduces project risks and achieves truly reliable cost reduction and efficiency enhancement.

Fast Service Reaction

After confirmation, intelligently schedule production using digital quality control and agile supply chains to reduce bulk order delivery time by thirty percent. Use self-developed molds and flexible production lines to finish sampling and delivery within seven days. You can benefit from market opportunities for both standard bolts and custom-shaped parts with our "Demand-Solution-Sampling-Production" closed-loop solution.