M6-M20 Lifting Eye Bolt 304 Stainless Steel Concrete Sleeve Anchor — Round & Triangle Ring

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M6-M20 Lifting Eye Bolt 304 Stainless Steel Concrete Sleeve Anchor — Round & Triangle Ring

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Size: M6*50

Pack Size(pcs): 1

Types: round ring

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M6-M20 Lifting Eye Bolt Sleeve Anchor — 304 Stainless Steel for Concrete & Masonry

When you need a secure, load-rated anchor point in concrete, block, or masonry, a poorly chosen fastener can mean a failed lift or a safety incident. Contractors, riggers, and serious DIYers who work with overhead loads need a lifting eye bolt sleeve anchor that expands reliably, resists corrosion, and provides a clean attachment point for hooks, shackles, and slings.

Each anchor consists of a 304 stainless steel threaded bolt body with an integrated expansion sleeve and a welded lifting ring — available in round ring or triangle ring styles. Thread diameters range from M6 to M20, with bolt lengths from 50mm (≈2") to 250mm (≈9.8"). Available in single-piece, 3-pack, and 5-pack quantities to suit both one-off repairs and larger projects.

Typical applications include concrete ceiling anchor points for chain hoists and block-and-tackle systems, wall-mounted rigging anchors in warehouses and workshops, lifting inserts for precast concrete panels, and tie-down anchor points for securing equipment on concrete slabs. The metric thread sizing makes these a natural fit for machinery installation, structural steel erection, and general industrial rigging where metric fasteners are standard.

ℹ️ Compatibility Note: These anchors use standard ISO metric coarse threads (M6–M20). They are designed for solid concrete and masonry substrates. Not compatible with UNC/UNF inch threads. Verify your base material and required embedment depth before ordering.

✅ Key Features of These Lifting Eye Bolt Sleeve Anchors

🔩Expansion Sleeve Design — The mechanical expansion sleeve locks into concrete or masonry as the bolt is tightened, creating a secure anchor point without adhesive or grout.
🦾304 Stainless Steel Construction — Resists rust and oxidation in outdoor, humid, and mildly corrosive environments, extending service life compared to zinc-plated carbon steel alternatives.
🔄Two Ring Styles — Round rings allow multi-directional rotation for flexible rigging setups; triangle rings provide a stable flat attachment point for straps and flat hooks.
📐Wide Size Range (M6–M20) — Covers light-duty anchor points up to heavy structural lifting inserts, with bolt lengths from 50mm (≈2") to 250mm (≈9.8") for varying embedment requirements.
📦Flexible Pack Quantities — Available as single pieces, 3-packs, or 5-packs, so you can order exactly what you need for a single repair or a multi-point rigging installation.
🏗️Broad Application Compatibility — Suited for concrete ceiling hoists, warehouse rigging anchors, precast panel lifting inserts, and machinery tie-down points where a metric concrete sleeve anchor is required.

📐 Technical Specifications — Lifting Eye Bolt Sleeve Anchors

Product Type	Lifting Eye Ring Expansion Bolt (Sleeve Anchor)
Material	304 Stainless Steel
Thread Standard	ISO Metric Coarse (M6, M8, M10, M12, M14, M16, M20)
Bolt Length Range	50mm–250mm (≈2"–9.8") — see variant options
Ring Types	Round Ring / Triangle Ring (select variant)
Pack Sizes Available	1 pc / 3 pcs / 5 pcs
Anchor Mechanism	Mechanical expansion sleeve
Recommended Base Material	Solid concrete, solid masonry, brick
Corrosion Resistance	Good (outdoor / humid environments); not rated for marine immersion
Working Load Limit	See variant options — Contact us to confirm
Finish	Brushed stainless (natural 304 SS)
Country of Origin	See variant options

⚠️ Important: Always verify the working load limit for your specific size and embedment depth before use in overhead lifting applications. Apply a minimum 4:1 safety factor. If you are unsure, contact us to confirm specifications.

❓ Frequently Asked Questions

How do I choose the right size lifting eye bolt for my application?

Match the thread diameter to your tapped hole or anchor point. As a general rule, the bolt length should be at least 1.5× the thread diameter for adequate embedment in concrete. For example, an M8 bolt is typically used with 50–100mm (≈2–4") lengths for light-to-medium loads. When in doubt, go one size up. If you need help selecting the right size, contact us with your load requirements and base material details.

What load capacity can these lifting eye bolts handle?

Working load limits vary by thread size and embedment depth. Generally, M6 bolts are suited for lighter rigging tasks, while M16–M20 bolts are used for heavier structural lifting. Always consult a load table and apply an appropriate safety factor (typically 4:1 or higher) for overhead lifting. Contact us to confirm the working load limit for your specific size.

Are these eye bolts suitable for outdoor or marine use?

Yes. These are made from 304 stainless steel, which provides good corrosion resistance in most outdoor and humid environments. For highly aggressive marine or chemical environments, 316 stainless steel is generally recommended. Contact us to confirm suitability for your specific conditions.

What thread standard do these sleeve anchors use — are they compatible with my existing hardware?

These use standard ISO metric coarse threads, compatible with M6, M8, M10, M12, M14, M16, and M20 threaded holes and fixtures. They are not compatible with UNC/UNF inch-standard threads. If your existing hardware uses inch threads, these anchors will not fit without an adapter.

What is the difference between the round ring and triangle ring types?

Round rings allow the hook or shackle to rotate freely in any direction, making them ideal for multi-directional lifting and rigging where the load angle may shift. Triangle rings provide a fixed, flat attachment point that is typically used with flat hooks or straps where a stable, non-rotating connection is preferred. Both types are available in the same size range.

Can I install these in materials other than concrete?

These sleeve anchors are designed primarily for solid concrete and solid masonry. They can generally be used in solid brick or block, though holding strength may be lower in hollow or lightweight materials. They are not recommended for wood, drywall, or soft substrates. When in doubt, test a sample installation and verify pull-out strength before committing to a full installation.

How do I convert the bolt length from mm to inches?

Divide the mm value by 25.4. Quick reference: 50mm ≈ 2", 60mm ≈ 2.4", 80mm ≈ 3.1", 100mm ≈ 3.9", 120mm ≈ 4.7", 150mm ≈ 5.9", 200mm ≈ 7.9", 250mm ≈ 9.8". All lengths are measured as the usable bolt shank length.

🛒 Select your size, pack size, and ring type above, then add to cart — ships from our US warehouse.

M6-M20 Lifting Eye Bolt 304 Stainless Steel Concrete Sleeve Anchor — Round & Triangle Ring

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M6-M20 Lifting Eye Bolt Sleeve Anchor — 304 Stainless Steel for Concrete & Masonry

✅ Key Features of These Lifting Eye Bolt Sleeve Anchors

📐 Technical Specifications — Lifting Eye Bolt Sleeve Anchors

❓ Frequently Asked Questions

M6-M20 Lifting Eye Bolt 304 Stainless Steel Concrete Sleeve Anchor — Round & Triangle Ring

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