Stainless Steel Eye Bolt Sleeve Anchors for Concrete — Secure Overhead Rigging Without Guesswork
Whether you're hanging a swing set, rigging a block-and-tackle in a workshop, or securing safety cables to a concrete ceiling, a loose or corroded anchor point is a liability you can't afford. Contractors, riggers, and serious DIYers need an anchor that expands reliably in concrete, holds its rated load, and won't rust out after one wet season.
Each piece is a one-body 304 stainless steel A2 eye bolt sleeve anchor — the eye loop and the expansion sleeve are integrated into a single corrosion-resistant fastener. Available in four diameter-by-length combinations: M6.5×40mm (≈1/4"×1-9/16"), M8×45mm (≈5/16"×1-3/4"), M10×60mm (≈3/8"×2-3/8"), and M12×70mm (≈1/2"×2-3/4"). Order in quantities of 1, 3, 5, 10, or 20 pieces to match your project scale.
Typical applications include overhead cable and rope rigging in garages and warehouses, anchor points for fall-arrest systems on concrete structures, hanging planters or lighting fixtures from concrete ceilings, and securing safety netting or tarpaulins to masonry walls — all scenarios where a stainless steel eye bolt sleeve anchor for concrete delivers long-term reliability.
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Compatible with: Solid concrete (C20/25 and above) · Solid brick · Dense masonry block · Standard metric nuts & washers (ISO 261 coarse thread) · M6.5, M8, M10, M12 drill bits
✅ Key Features of These Stainless Steel Eye Bolt Sleeve Anchors
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🔗Integrated Eye Loop Design — The eye and anchor body are forged as one piece, eliminating the weak point of a threaded-on eye bolt that can unscrew under cyclic or rotational loads.
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🛡️304 A2 Stainless Steel Construction — Resists rust, oxidation, and mild chemical exposure — suitable for outdoor, coastal, and humid indoor environments where carbon steel anchors would corrode within months.
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📐Four Size Options in One Listing — M6.5×40, M8×45, M10×60, and M12×70 cover the most common concrete anchor diameters for light-duty rigging through medium structural attachment points.
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⚙️Wedge-Expansion Sleeve Mechanism — As the nut is tightened, the sleeve expands radially against the drilled hole wall, creating a mechanical interlock that resists pull-out forces in solid concrete and masonry.
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📦Flexible Quantity Options — Choose 1, 3, 5, 10, or 20 pieces per order. Single-piece ordering suits repair jobs; bulk quantities reduce per-unit cost for contractors installing multiple anchor points.
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🔧Standard Metric Thread Compatibility — ISO 261 coarse metric threads mean these eye bolt anchors work with off-the-shelf metric hardware — no proprietary tools or specialty nuts required for installation or adjustment.
📐 Technical Specifications — Eye Bolt Sleeve Anchors
| Material |
304 Stainless Steel (A2 grade, ISO 3506) |
| Available Sizes (Diameter × Length) |
M6.5×40mm (≈1/4"×1-9/16") · M8×45mm (≈5/16"×1-3/4") · M10×60mm (≈3/8"×2-3/8") · M12×70mm (≈1/2"×2-3/4") |
| Thread Standard |
Metric coarse thread, ISO 261 |
| Anchor Type |
Sleeve expansion anchor with integrated eye loop |
| Base Material Compatibility |
Solid concrete, solid brick, dense masonry block |
| Minimum Embedment Depth |
Typically ≥4× nominal diameter (e.g., M8: ≥32mm / ≈1-1/4") |
| Required Drill Bit Diameter |
Matches nominal anchor diameter (6.5 / 8 / 10 / 12 mm) |
| Finish / Surface Treatment |
Mill finish (natural stainless steel) |
| Working Load (Tensile, indicative) |
See variant options — varies by size, embedment depth, and concrete grade |
| Quantity per Order |
1 / 3 / 5 / 10 / 20 pieces (select above) |
| Country of Origin |
Contact us to confirm |
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Installation note: Always verify anchor size, embedment depth, and concrete grade against your project's load requirements before installation. For overhead or life-safety applications, consult a licensed structural engineer.
❓ Frequently Asked Questions
How do I choose the right diameter and length for my eye bolt sleeve anchor?
Match the bolt diameter to your fixture hole size — M6.5 (≈1/4"), M8 (≈5/16"), M10 (≈3/8"), or M12 (≈1/2"). For length, the anchor shank should embed at least 4× the bolt diameter into the base material. For example, an M8 anchor typically requires a minimum 32mm (≈1-1/4") embedment depth. Choose a longer anchor when working in lower-strength concrete or when higher loads are expected.
What load can these eye bolt sleeve anchors support?
Working load capacity depends on bolt diameter, embedment depth, and base material strength. Generally, M8 anchors in standard concrete (C20/25) support tensile loads of approximately 1.0–2.0 kN per anchor. Always apply a safety factor of at least 4:1 and consult a structural engineer for critical overhead or dynamic load applications. Do not use load ratings from one size to estimate another without recalculating.
Are these anchors suitable for outdoor or marine environments?
Yes. The 304 stainless steel (A2 grade) construction provides good corrosion resistance for most outdoor, coastal, and humid environments. For highly aggressive marine or chemical environments — such as direct saltwater splash zones or chemical processing areas — 316 (A4) stainless steel is generally recommended instead. In typical outdoor or covered exterior applications, 304 A2 performs reliably for many years.
What thread standard do these eye bolt anchors use — are they compatible with standard metric hardware?
These anchors use standard metric coarse threads per ISO 261. The available combinations are M6.5×40, M8×45, M10×60, and M12×70. They are compatible with standard metric nuts and flat washers of the corresponding size, available at any hardware store. No proprietary tools or specialty hardware are required.
Can I use these anchors in brick or block, not just concrete?
Sleeve anchors generally perform best in solid concrete. They can be used in solid brick or dense block, but load ratings are typically lower than in concrete of equivalent thickness. They are not recommended for hollow block, aerated concrete (AAC/Aircrete), or soft masonry without engineering review. When in doubt, use a chemical anchor system for non-concrete substrates.
How many anchors do I need to buy — can I order just one piece?
Yes — each listing lets you choose a quantity of 1, 3, 5, 10, or 20 pieces per order. A single piece is ideal for a one-off repair or replacement. Buying in larger quantities (10 or 20 pcs) reduces the per-unit cost significantly, making it economical for contractors or multi-point rigging projects such as safety cable systems or suspended equipment installations.
What drill bit size and drill type do I need for installation?
Use a carbide-tipped masonry or SDS hammer drill bit matching the anchor's nominal diameter: 6.5 mm for M6.5, 8 mm for M8, 10 mm for M10, and 12 mm for M12. Drill depth should equal the anchor length plus approximately 6 mm (≈1/4") for debris clearance. Always blow out the hole with compressed air and clean it before inserting the anchor to ensure proper expansion and maximum holding strength.
🛒 Select your diameter, length, and quantity above, then add to cart — ships from our US warehouse.
