Expansion Anchors Bolt Sleeve Anchor M6-M16

Hex Bolt Sleeve Anchors for Concrete, Brick & Stone – High-Strength Mechanical Expansion Fasteners (M6–M16)

Engineered for superior performance in demanding structural applications, these hex Bolt sleeve anchors deliver exceptional holding power up to 50 kN—validated by ETAG 001 testing standards. Ideal for load-bearing installations in solid substrates such as concrete, masonry, and natural stone, this mechanical Expansion Anchor system ensures long-term stability even under vibration or dynamic stress. Whether you're securing heavy-duty equipment, steel frames, or industrial fixtures, these fasteners provide reliable anchoring with minimal installation effort.

Key Features:

• Premium Materials: Available in zinc-plated carbon steel (Grade 8.8) or marine-grade 316 stainless steel for corrosion resistance in harsh environments.
• Split-Sleeve Mechanism: Cold-forged steel sleeve expands radially when tightened, creating uniform pressure against the borehole wall for maximum grip.
• Wide Diameter Range: From M6 to M16 (8mm to 24mm), offering flexibility across residential, commercial, and infrastructure projects.
• Customizable Lengths: Standard lengths from 50mm to 300mm; custom sizes available upon request to match specific project needs.
• Global Compliance: Meets DIN 7990, BS 7419, and ASTM F1554 specifications for international construction standards.
• Extreme Temperature Tolerance: Stainless versions perform reliably between -50°C and +300°C, suitable for both arctic and high-heat industrial settings.

Each anchor is designed for precision installation using a hammer drill, vacuum cleaner, and torque wrench. Begin by drilling a hole slightly larger than the anchor diameter—typically 2mm wider—to allow proper expansion. After cleaning debris thoroughly, insert the anchor so that the sleeve sits just below the surface (about 5mm). Lubricating the threads with lithium grease reduces friction during tightening, ensuring accurate torque application without damaging the threads. Tighten clockwise until full engagement is achieved, which activates the split-sleeve mechanism for optimal clamping force.

These anchors are commonly used in structural steelwork, machinery mounting, scaffolding, electrical enclosures, signage systems, and utility pole installations where consistent load distribution and anti-vibration properties are critical. Their robust design makes them ideal for seismic zones, outdoor structures exposed to weather, and facilities requiring long-term maintenance-free performance.

Users consistently praise the reliability of this anchor type for its ability to maintain integrity over time, especially in environments where traditional plastic or wedge-type anchors fail due to thermal cycling or moisture ingress. Many contractors note how the clear visual indicators during installation—such as sleeve positioning and torque feedback—reduce errors and improve safety on-site.

Frequently Asked Questions:

What’s the difference between a Sleeve Anchor and a Wedge Anchor? While both expand mechanically inside the hole, sleeve anchors use a split sleeve that spreads outward uniformly, whereas wedge anchors rely on a conical wedge pressing against the inner wall. This results in more predictable load transfer and less risk of base material cracking with sleeve anchors.

Can I reuse a sleeve anchor after removal? No, once fully expanded, the sleeve cannot be reset. For repeated use, it's best to install new anchors.

Are these anchors suitable for hollow walls? Not directly—they require solid base materials like concrete or brick. For masonry or hollow block, consider specialized anchors such as toggle bolts or snap toggles.

How do I ensure maximum holding strength? Clean the drilled hole completely before insertion—residual dust can reduce holding power by over 50%. Use the correct drill bit size and follow torque recommendations to avoid over-tightening or under-expansion.

This product line includes multiple variations tailored to different mounting requirements: shield anchors, flange Nut anchors, shark fin sleeves, ceiling anchors, Gas Concrete anchors, and more—all engineered for durability, ease of use, and compliance with global building codes.

Product Categories : Sleeve Anchor > Hex Bolt Sleeve Anchor