M3–M24 Lifting Eye Nuts & Eye Bolts — A2-304 Stainless Steel for Rigging, Lifting & Structural Fastening
When a standard hex nut or bolt simply won't do the job, makers, riggers, and maintenance engineers reach for a dedicated lifting eye fastener. Whether you're suspending a motor, anchoring a cable run, or building a custom lifting frame, a loose or corroded attachment point is a liability you can't afford. These A2-304 stainless steel lifting eye nuts and eye bolts are engineered for exactly those demanding scenarios — giving DIYers and professionals a reliable, corrosion-resistant anchor point in a single fastener.
This listing covers two product types across a wide metric size range. Eye Nuts are available in circular-ring and triangle-ring profiles from M3 through M24, providing a fixed loop that accepts shackles, hooks, or wire rope. Eye Bolts feature a fully threaded shank from M3 × 9 mm up to M24 × 40 mm (typically 9–200 mm shank length depending on diameter), allowing direct installation into tapped holes or through-bolted assemblies. All fasteners are machined from A2-304 stainless steel, offering a tensile strength typically in the 500–700 MPa range and solid resistance to atmospheric moisture and mild chemical exposure.
Typical use cases include overhead lifting rigs in workshops and garages, cable management anchor points in server rooms and industrial enclosures, marine and outdoor rigging where salt-air corrosion resistance is needed, and custom jig or fixture builds where a low-profile swivel attachment is required. The broad M3–M24 thread range makes these fasteners a go-to for both miniature electronics enclosures and heavy structural applications.
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Compatibility: Metric thread standard (ISO 68-1). Eye Nuts accept standard metric bolts or threaded rod of the matching diameter. Eye Bolts thread into standard metric tapped holes. Verify thread pitch before ordering — standard coarse pitch applies unless otherwise noted.
✅ Key Features of These Lifting Eye Nuts & Eye Bolts
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Two Attachment Styles
Choose between Eye Nuts (circular or triangle ring, no shank) for use with bolts or threaded rod, and Eye Bolts (threaded shank) for direct installation into tapped holes — one listing covers both rigging needs.
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A2-304 Stainless Steel Construction
Manufactured from A2-304 stainless steel with tensile strength typically 500–700 MPa. Resists rust, oxidation, and mild chemical exposure — suitable for indoor, outdoor, and marine-adjacent environments.
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Wide Metric Size Range M3–M24
Eye Nuts span M3 through M24 in both circular and triangle ring profiles. Eye Bolts cover M3 through M24 with shank lengths from 9 mm to 200 mm, giving you the right fastener for miniature builds and heavy-duty structural work alike.
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Circular & Triangle Eye Nut Profiles
Circular eye nuts provide a smooth, continuous ring ideal for shackles and hooks. Triangle eye nuts offer a flat-sided loop that resists rotation and suits applications where the attachment point must stay oriented.
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Standard ISO Metric Threading
All fasteners use standard ISO metric coarse-pitch threading, ensuring compatibility with off-the-shelf metric hardware, threaded rod, and tapped holes without the need for special tooling or adapters.
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Sold Individually — Mix & Match Sizes
Each variant is priced and sold as a single piece, so you can order exactly the quantity and size combination your project requires without paying for a bulk pack you don't need.
📐 Technical Specifications — Lifting Eye Nuts & Eye Bolts
| Product Types |
Eye Nut (Circular), Eye Nut (Triangle), Eye Bolt |
| Material |
A2-304 Stainless Steel |
| Thread Standard |
ISO Metric (Coarse Pitch) |
| Thread Size Range |
M3 – M24 |
| Eye Nut Profiles |
Circular ring, Triangle ring |
| Eye Bolt Shank Length Range |
9 mm – 200 mm (varies by diameter; see variant options) |
| Tensile Strength (typical) |
500 – 700 MPa |
| Surface Finish |
Mill / brushed stainless (natural A2 finish) |
| Corrosion Resistance |
Atmospheric, moisture, mild chemical |
| Quantity per Order |
1 piece per variant selected |
| Drive / Installation |
Eye Nuts: wrench on shank bolt; Eye Bolts: thread into tapped hole or use with nut |
| Compatible Hardware |
Standard metric shackles, hooks, wire rope clips, threaded rod |
❓ Frequently Asked Questions
What is the difference between an Eye Nut and an Eye Bolt?
An Eye Nut is a nut with an integral ring or loop — you thread it onto a bolt or threaded rod and the ring provides the attachment point. An Eye Bolt has a threaded shank that screws directly into a tapped hole or is used with a standard nut; the loop is at the head end. Choose an Eye Nut when you need to add a lifting point to an existing bolt; choose an Eye Bolt when you're installing into a pre-drilled and tapped hole.
What is the difference between Circular and Triangle Eye Nuts?
Circular eye nuts have a smooth, closed round ring that rotates freely around the shank, making them ideal for use with shackles, snap hooks, and wire rope where the load direction may vary. Triangle eye nuts have a flat-sided triangular loop that resists rotation and keeps the attachment point in a fixed orientation — useful when you need the ring to stay aligned with a specific load direction or when using a carabiner-style clip.
How do I select the correct size Eye Bolt shank length?
The shank length should be long enough to achieve full thread engagement in the tapped hole — a minimum of 1× the bolt diameter is the absolute minimum, but 1.5–2× the diameter is recommended for load-bearing applications. For through-bolt installations, add the material thickness plus the nut height. Check the variant options for the available shank lengths for each diameter (M3 through M24).
Are these fasteners suitable for outdoor or marine use?
A2-304 stainless steel offers solid resistance to atmospheric corrosion, rain, and humidity, making it suitable for most outdoor applications. For direct saltwater immersion or highly aggressive marine environments, A4-316 stainless steel is generally recommended. These fasteners are well-suited for coastal outdoor use, covered marine applications, and environments with occasional moisture exposure.
What load capacity can I expect from these eye fasteners?
Load capacity depends on the thread diameter, shank engagement depth, base material, and installation method. A2-304 stainless steel has a typical tensile strength of 500–700 MPa. For safety-critical lifting applications, always consult a structural engineer and refer to the relevant load rating standards (e.g., EN 1677 for lifting components). These fasteners are not rated or certified for overhead lifting of personnel.
Can I use these with standard metric hardware I already own?
Yes. All fasteners use standard ISO metric coarse-pitch threading, which is compatible with off-the-shelf metric bolts, nuts, threaded rod, and tapped holes. No special tooling or adapters are required. Simply match the thread diameter (e.g., M6 Eye Nut onto an M6 bolt) and verify the pitch matches your existing hardware — standard coarse pitch is used throughout this range.
Are these sold in packs or individually?
Each variant is sold as a single piece (1 × fastener). This allows you to order exactly the quantity and size combination your project requires. If you need multiple pieces of the same size, simply adjust the quantity in your cart before adding to order.
🛒 Select your Type and Size above, then add to cart.
