A2 Stainless Steel Metal O Ring Seamless Solid Circle Wire-φ 3 4 5 6 8 10mm 304
A2 Stainless Steel Metal O Ring Seamless Solid Circle Wire-φ 3 4 5 6 8 10mm 304
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A2 Stainless Steel Metal O Ring Seamless Solid Circle Wire-φ 3 4 5 6 8 10mm 304A2 Stainless Steel Metal O Ring Seamless Solid Circle Wire-φ 3 4 5 6 8 10mm 304

A2 Stainless Steel Metal O Ring Seamless Solid Circle Wire-φ 3 4 5 6 8 10mm 304

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Beschreibung

A2 Stainless Steel Seamless Solid O-Rings — Corrosion-Resistant Loops for Demanding Connections

When a welded or split ring simply won't hold up — in saltwater rigging, load-bearing hardware, or outdoor structural assemblies — engineers and serious DIYers reach for a seamless solid O-ring. Fabricated from A2 (304) stainless steel wire, these rings have no joint, no weld bead, and no weak point where corrosion can take hold first.

Each ring is cold-formed from round stainless steel wire in metric wire diameters from M3 (≈0.12 in) to M10 (≈0.39 in), with outer diameters ranging from 20 mm (≈0.79 in) to 100 mm (≈3.94 in). The smooth, polished surface finish resists galling against shackles, carabiners, and snap hooks.

Typical applications include marine deck hardware and sail rigging, key-ring and lanyard attachment points, macramé and jewelry-making loops, and light-duty lifting slings where a continuous loop is required. The metric sizing makes these seamless stainless O-rings a direct fit for standard European and ISO fastener assemblies.

🔗 Compatibility: Fits standard metric shackles, snap hooks, carabiners, and rigging hardware sized for M3–M10 wire. Verify inner diameter against your mating hardware before ordering.

✅ Key Features of These Seamless Stainless Steel O-Rings

  • 🔩No weld, no joint: Cold-formed from a single continuous wire — eliminates the failure point found on welded or split rings under cyclic load.
  • 🌊A2 (304) stainless steel: Resists rust, oxidation, and mild chemical exposure; suitable for outdoor, marine, and humid indoor environments.
  • 📐Metric sizing M3–M10: Wire diameters cover M3, M4, M5, M6, M8, and M10; OD options from 20 mm to 100 mm for precise hardware matching.
  • ✨Smooth polished finish: Reduces friction against mating hardware and minimises surface scratching on decorative or soft-goods applications.
  • 📦Flexible pack quantities: Available in 1-piece, 2-piece, and 6-piece packs — order exactly what your project requires without excess waste.
  • ⚖️Consistent dimensional tolerance: Each ring is formed to tight OD and wire-diameter tolerances, ensuring repeatable fit across batch orders.

📐 Technical Specifications — Seamless Solid O-Rings

Material A2 Stainless Steel (304 grade)
Form Seamless solid ring (no weld, no joint)
Wire Diameter (φ) M3 / M4 / M5 / M6 / M8 / M10 — see variant options
Outer Diameter (OD) 20 mm – 100 mm (≈0.79 in – 3.94 in) — see variant options
Surface Finish Smooth polished
Corrosion Resistance Suitable for outdoor and mild marine environments
Pack Quantity 1 Pcs / 2 Pcs / 6 Pcs — see variant options
Condition New

❓ Frequently Asked Questions

How do I choose the right wire diameter and OD for my project?

Match the wire diameter (φ) to the slot or pin it must pass through, and the outer diameter (OD) to the loop size your hardware requires. For shackle or snap-hook use, the wire φ should be equal to or smaller than the shackle pin diameter, and the OD should be large enough that the ring cannot slip through the bow of the shackle under load.

Are these rings strong enough for load-bearing applications?

A2 304 stainless steel has a tensile strength of approximately 515 MPa (75,000 psi). However, working load limits depend on wire diameter, OD, and the direction of loading. These rings are suitable for light-duty rigging and hardware connections. For safety-critical lifting, consult a structural engineer and use certified lifting rings with a rated WLL.

Will these rust in a saltwater or outdoor environment?

A2 (304) stainless steel offers good resistance to atmospheric corrosion and occasional saltwater splash. For continuous saltwater immersion (e.g., below the waterline on a boat), A4 (316) grade is generally recommended. For above-deck rigging, dock hardware, and outdoor structural use, A2 performs reliably with periodic rinsing.

What is the difference between a seamless ring and a welded ring?

A welded ring is formed from wire and then butt-welded at the joint. The weld zone can be a stress concentration point and is often the first area to corrode. A seamless solid ring is cold-formed from a single continuous piece of wire with no joint at all, giving uniform cross-section and consistent strength around the entire circumference.

Can I use these O-rings for macramé, jewelry, or craft projects?

Yes. The smooth polished finish and consistent round profile make these rings well-suited for macramé connectors, pendant bails, lanyard clips, and decorative hardware. The smaller sizes (M3 × 20 mm, M3 × 30 mm) are particularly popular for jewelry and fine craft work.

How do I select the correct pack size?

The 1-piece option is ideal for prototyping or single-repair jobs. The 2-piece pack suits small projects where a spare is useful. The 6-piece pack offers the best per-unit value for batch builds, rigging multiple attachment points, or keeping stock on hand for ongoing maintenance work.

Are the dimensions metric or imperial?

All dimensions are metric (mm). The wire diameter designation follows the ISO metric thread prefix convention (M3, M4, etc.) to indicate wire diameter in millimetres. Approximate inch equivalents: M3 ≈ 0.12 in, M4 ≈ 0.16 in, M5 ≈ 0.20 in, M6 ≈ 0.24 in, M8 ≈ 0.31 in, M10 ≈ 0.39 in.

🛒 Select your Wire φ × OD size and quantity above, then add to cart.

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