High-Performance 304 Stainless Steel Expansion Bolts for Heavy Duty Anchoring
As a premier stainless steel supplier, YouJia Metal provides professional-grade heavy duty expansion bolts (also known as wedge anchors or expansion screws). Manufactured from authentic AISI 304 stainless steel, these fasteners are engineered to provide a permanent and high-strength anchoring point in concrete, brick, and stone. They are the foundation of secure installations in rigging hardware, industrial construction, and outdoor infrastructure.
H2: Engineered for Maximum Load Capacity and Structural Safety
In the world of rigging hardware, the anchor point is the most critical link. Our heavy duty expansion bolts feature a precision-designed expansion sleeve that provides 360-degree contact with the hole wall, ensuring maximum pull-out resistance. Whether you are mounting heavy machinery or securing a cable tensioning system, choosing a specialized stainless steel supplier like YouJia Metal ensures that your structural connections meet the highest safety requirements.
H2: Material Integrity: Premium 304 Stainless Steel
Durability is essential for fasteners embedded in masonry. Our expansion bolts are made from high-grade 304 stainless steel, offering:
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Superior Corrosion Resistance: Essential for preventing material fatigue and rust in outdoor and moisture-prone construction environments.
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Long-Term Reliability: Unlike galvanized anchors, our SS304 heavy duty bolts will not chip or peel, maintaining their structural integrity for decades.
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Trusted Sourcing: As your reliable stainless steel supplier, we provide full material traceability, ensuring your projects comply with industrial building codes.
H2: Technical Specifications & Precision Manufacturing
Our heavy duty expansion screws are processed using advanced CNC machining to ensure the perfect taper and sleeve fitment.
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Size Range: Comprehensive metric stock available in various lengths and diameters (M6, M8, M10, M12, M16, and larger).
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Components: Each set includes a heavy-duty threaded bolt, expansion sleeve, flat washer, and hex nut.
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Tolerance: Precision-controlled threads ensure a smooth and secure tightening process every time.
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Easy Installation: Designed for standard drill bit sizes to streamline your rigging hardware workflow.
H2: Versatile Applications in Heavy Duty Sectors
These 304 stainless steel expansion bolts are critical components used across diverse high-stakes industries:
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Industrial Rigging Hardware: Anchoring hoist rings, crane rails, and heavy-duty cable terminals to concrete structures.
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Construction & Architecture: Securing steel beams, staircases, balustrades, and modern building facades.
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Renewable Energy: Providing high-strength base anchoring for solar PV mounting racks and wind turbine equipment.
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Marine & Maritime: Reliable anchoring for dock hardware, pier railings, and coastal protection barriers.
H2: Custom Non-Standard Processing & Engineering Support
We understand that complex rigging hardware projects often require specialized anchoring solutions. As a flexible stainless steel supplier, we thrive on non-standard custom processing. Whether you require extra-long expansion bolts, non-standard sleeve diameters, or anchors made from 316 marine-grade steel, our team can manufacture parts according to your exact STP or DWG drawings. We provide expert OEM services for global construction and rigging brands.
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Key Advantages of Our 304 SS Expansion Bolts
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Superior Corrosion Resistance: Made from authentic AISI 304 (18/8) stainless steel, these bolts are rust-proof and suitable for humid or outdoor environments.
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High Load Capacity: The heavy-duty sleeve design expands against the concrete to provide a secure, vibration-resistant grip.
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Precision Threading: CNC-machined threads ensure smooth installation and maximum torque retention.
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Customization Options: As a specialist in customized processing, we can produce non-standard lengths, diameters, and head types based on your STP or PDF drawings.
- Recommended for use with our industrial 304 316 stainless steel chain for heavy-duty installation.
Technical Specifications
| Attribute | Details |
| Material Grade | AISI 304 / 304L Stainless Steel |
| Diameter Range | M6, M8, M10, M12, M14, M16, M20 |
| Bolt Type | Sleeve Anchor / Wedge Anchor / Expansion Bolt |
| Head Type | Hex Nut / Eye Bolt / Hook Bolt / C-Type |
| Surface Finish | Bright Polished / Passivated |
| Application | Concrete, Stone, Brick, Steel Structures |
Common Applications
Our stainless steel anchor bolts are essential for various industrial and architectural sectors:
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Industrial Machinery: Securing heavy equipment and factory production lines.
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Outdoor Construction: Installing railings, fences, and air conditioning brackets where rust prevention is critical.
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Marine Rigging: Fastening components in coastal areas (for extreme saltwater, we recommend our 316 stainless steel version).
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Architectural Decoration: Reliable fixing for wind dynamic walls, glass curtain walls, and signs.
Why Source Fasteners from YouJia Metal?
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Factory Direct: Eliminate middlemen and reduce procurement costs.
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Material Certification: We provide chemical composition reports to verify it is genuine 304 stainless steel.
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Non-Standard Expert: If standard M-sizes don’t fit, we provide custom stainless steel non-standard parts tailored to your specific engineering needs.
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Global Shipping: Fast lead times and secure packaging for international B2B clients.
Frequently Asked Questions (FAQ)
Q: What is the difference between 304 and 316 expansion bolts?
A: 304 stainless steel is excellent for most outdoor and industrial uses. However, if your project is within 5 miles of the ocean, we recommend 316 stainless steel for its superior resistance to chlorides.
Q: Can you manufacture custom sizes?
A: Yes. We specialize in non-standard metal parts. Please send your technical drawings (STP/DWG) to our engineering team for a free quote.
Call to Action (CTA)
Need a reliable fastener supplier?
Contact YouJia Metal today for wholesale pricing and material certificates on our 304 stainless steel expansion bolts.
Email: liyan@youjiasupplier.com
WhatsApp: +86 15952693580







