How many pieces do I need to order?

Each listing lets you choose 1, 3, 5, or 10 pieces per order. For single fixtures like a hanging lamp or swing, 1–2 bolts are usually sufficient. For shelving brackets or pergola hardware, ordering a pack of 5 or 10 is more economical.

Stainless Steel Open Hook Expansion Anchor Bolts — M6 M8 M10 M12 (304 SS A2)

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Stainless Steel Open Hook Expansion Anchor Bolts — M6 M8 M10 M12 (304 SS A2)

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Material: 304 Stainless Steel A2

Size: M6

Quantity(Piece): 1

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Open Hook Expansion Anchor Bolts — Secure Hanging Points in Concrete & Masonry

Whether you're mounting a heavy-duty swing, suspending a chandelier from a concrete ceiling, or anchoring a pergola beam to a block wall, a weak or wrong fastener is a liability you can't afford. These open hook expansion anchor bolts give DIYers, contractors, and facility managers a reliable, corrosion-resistant anchor point in solid base materials — no guesswork, no wobble.

Each piece is a one-body expansion anchor bolt with an open hook head, machined from 304 Stainless Steel (A2 grade). Available in four metric thread sizes — M6 (≈1/4"), M8 (≈5/16"), M10 (≈3/8"), and M12 (≈1/2") — and sold in quantities of 1, 3, 5, or 10 pieces so you can order exactly what your project requires. The open hook profile accepts rope, chain, carabiner clips, or wire rope directly without additional hardware.

Typical applications include hanging porch swings and hammock chairs from concrete beams, suspending pendant lights or ceiling fans in commercial spaces, securing safety cables and fall-arrest anchor points, and attaching garden structures or outdoor shade sails to masonry walls. The metric thread sizing makes these stainless steel hook anchor bolts compatible with standard metric hardware across residential and light commercial projects.

🔩 Compatible with: Solid concrete, brick, natural stone, and dense concrete block. Requires a hammer drill and matching metric masonry bit (M6 → 6mm, M8 → 8mm, M10 → 10mm, M12 → 12mm). Metric coarse thread (ISO standard).

✅ Key Features of These Open Hook Expansion Anchor Bolts

🦾 304 Stainless Steel A2 Construction — Manufactured from A2-grade 304 SS for solid resistance to rust, oxidation, and mild chemical exposure — a step above zinc-plated carbon steel anchors in longevity.
🪝 Open Hook Head Design — The open-loop hook allows direct attachment of chains, ropes, carabiners, or wire rope without needing a separate shackle or connector, saving time on installation.
📐 Four Metric Sizes in One Listing — Choose M6, M8, M10, or M12 to match your load requirements and existing hardware. Each size uses standard metric coarse thread pitch for broad compatibility with metric nuts and fittings.
⚙️ Expansion Sleeve Anchor Mechanism — The wedge-expansion design locks the bolt firmly in place as the nut is tightened, distributing load into the surrounding base material for a secure, vibration-resistant hold in concrete and masonry.
📦 Flexible Pack Quantities — Order 1, 3, 5, or 10 pieces per variant to match your project scope — from a single swing anchor to a full run of ceiling suspension points — without overstocking.
🏗️ Broad Application Range — Suited for hanging swings, hammocks, pendant lights, safety cables, and outdoor shade structures where a fixed, load-bearing hook anchor point in concrete or masonry is required.

📐 Technical Specifications — Open Hook Expansion Anchor Bolts

⚠️ Bolt shank length and hook opening dimensions vary by size. Please confirm your required embedment depth before ordering. Contact us if you need specific dimensional drawings.

Product Type	Open Hook Expansion Anchor Bolt
Material	304 Stainless Steel (A2 Grade)
Finish	Natural brushed stainless (no coating)
Available Thread Sizes	M6 (≈1/4"), M8 (≈5/16"), M10 (≈3/8"), M12 (≈1/2")
Thread Standard	Metric coarse thread (ISO 68-1)
Required Drill Bit	6mm / 8mm / 10mm / 12mm masonry bit (matches bolt size)
Anchor Mechanism	Wedge expansion sleeve
Head Style	Open hook (loop)
Shank Length	See variant options
Hook Opening Width	See variant options
Suitable Base Materials	Solid concrete, brick, natural stone, dense concrete block
Pack Quantity Options	1 / 3 / 5 / 10 pieces
Country of Origin	Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right size open hook expansion bolt?

Match the bolt diameter to your drill bit size — for example, an M8 bolt requires an 8mm (5/16") masonry bit. Choose the length based on the base material thickness plus the depth needed for secure expansion, generally at least 30mm (≈1.2") of embedment into concrete or masonry. As a quick reference: M6 ≈ 1/4", M8 ≈ 5/16", M10 ≈ 3/8", M12 ≈ 1/2".

What load can these hook expansion bolts handle?

Load capacity depends on the bolt size, base material strength, and embedment depth. In standard concrete, an M8 hook expansion bolt can typically support 150–300 lbs in tension. Larger sizes (M10, M12) generally offer higher capacity. Always consult a structural engineer for safety-critical or overhead load applications such as fall-arrest systems.

Are these expansion anchor bolts suitable for outdoor or wet environments?

Yes. These bolts are made from 304 stainless steel (A2 grade), which provides good resistance to rust and corrosion in most outdoor and humid environments, including rain-exposed patios and garden structures. For coastal areas or environments with high chloride exposure, A4 (316 SS) grade is generally recommended for longer service life.

What thread standard do these hook anchor bolts use?

These bolts use standard metric coarse threads (ISO 68-1). The M6, M8, M10, and M12 designations refer to the nominal thread diameter in millimeters, making them compatible with standard metric nuts, washers, and hardware widely available in the US and internationally.

Can I use these in brick or block walls, not just concrete?

Yes, expansion anchor bolts generally work well in solid brick, dense concrete block, and natural stone. Performance in hollow block, lightweight aerated concrete (AAC), or soft brick may be reduced — in those cases, a chemical anchor or toggle bolt is typically a more reliable choice. When in doubt, test with a single bolt before committing to a full installation.

How many pieces should I order for my project?

Each listing lets you choose 1, 3, 5, or 10 pieces. For a single hanging point — such as a porch swing or pendant light — 1 or 2 bolts are usually sufficient. For shelving brackets, pergola hardware, or safety cable runs, ordering a pack of 5 or 10 is more economical and ensures you have spares on hand.

What is the difference between M6, M8, M10, and M12 for this type of bolt?

The M number refers to the nominal thread diameter in millimeters. In approximate inch equivalents: M6 ≈ 1/4", M8 ≈ 5/16", M10 ≈ 3/8", M12 ≈ 1/2". Larger diameters provide greater load capacity and require a correspondingly larger drill bit and hole. Choose based on the weight you need to support and the hardware (chain, carabiner, etc.) you plan to attach.

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

Stainless Steel Open Hook Expansion Anchor Bolts — M6 M8 M10 M12 (304 SS A2)

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Beschreibung

Open Hook Expansion Anchor Bolts — Secure Hanging Points in Concrete & Masonry

✅ Key Features of These Open Hook Expansion Anchor Bolts

📐 Technical Specifications — Open Hook Expansion Anchor Bolts

❓ Frequently Asked Questions

Stainless Steel Open Hook Expansion Anchor Bolts — M6 M8 M10 M12 (304 SS A2)

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