Are Heavy Duty Sleeve Anchors the ultimate concrete fastening solution?
2025-08-04
Understanding Sleeve Anchors
Sleeve anchors are versatile mechanical expansion anchors designed for permanent fastening in solid concrete, brick, and block applications. ZHELI's high-performance fasteners feature a threaded bolt surrounded by an expansion sleeve that creates a secure hold when tightened.
Key Advantages:
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Superior holding power in concrete and masonry
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Vibration-resistant design for long-term stability
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Quick and easy installation with basic tools
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Multiple material options for various environments
Technical Specifications
Material Options & Characteristics
| Material | Finish | Corrosion Resistance | Temperature Range | Best Applications |
|---|---|---|---|---|
| Carbon Steel | Zinc Plated | Moderate | -20°F to 200°F | Indoor, dry environments |
| 304 Stainless | Passivated | High | -50°F to 800°F | Outdoor, mild chemical exposure |
| 316 Stainless | Passivated | Excellent | -50°F to 800°F | Marine, high-corrosion areas |
| Hot-Dip Galvanized | Zinc Coated | High | -20°F to 390°F | Industrial, humid conditions |
Load Capacity & Size Chart
| Diameter | Minimum Embedment | Concrete psi | Shear Load | Tension Load |
|---|---|---|---|---|
| 1/4" | 1-1/4" | 2,000 | 1,100 lbs | 700 lbs |
| 3/8" | 1-7/8" | 2,000 | 2,300 lbs | 1,400 lbs |
| 1/2" | 2-1/2" | 2,000 | 4,100 lbs | 2,500 lbs |
| 5/8" | 3-1/8" | 2,000 | 6,400 lbs | 3,900 lbs |
Professional Installation Guide
Step-by-Step Installation:
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Drill hole to specified diameter and depth
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Clean hole thoroughly using brush and air
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Insert anchor through fixture into hole
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Tighten nut to proper torque specification
Recommended Torque Values:
| Diameter | Installation Torque |
|---|---|
| 1/4" | 5-7 ft-lbs |
| 3/8" | 15-20 ft-lbs |
| 1/2" | 30-35 ft-lbs |
| 5/8" | 50-60 ft-lbs |
Expert Q&A
Q: What's the minimum edge distance for sleeve anchors?
A: Maintain at least 5 anchor diameters from unsupported edges. For 1/2" anchors, keep minimum 2-1/2" from edges.
Q: Can sleeve anchors be used in overhead applications?
A: Yes, but ensure proper embedment depth and use in solid concrete only. For critical overhead loads, consider mechanical anchors.
Q: How do I remove a sleeve anchor?
A: Loosen the nut slightly, then tap the bolt downward to release expansion. For stubborn anchors, drill out carefully.
Why Our Sleeve Anchors Stand Out
Our premium sleeve anchors exceed industry standards with:
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Precision-machined threads for consistent performance
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Thicker expansion sleeves for maximum grip
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Strict quality control on every batch
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Multiple head styles (hex, flat, round) for various applications
For specialized requirements or large quantity orders, our engineering team can provide custom solutions tailored to your project needs. Contact us today for technical support and volume pricing.
