A2 304 Grade Black Stainless Steel Lifting Eye Nuts-Bolts M3 M4 M5 M6 M8 - M24

Match the eye bolt or eye nut thread size to your existing tapped hole or mating bolt. For example, if your extrusion or panel has an M6 tapped hole, select Eye Bolt – M6. If you are threading onto an M8 stud, select Eye Nut – M8. When in doubt, measure the thread diameter with a calliper or thread gauge before ordering.

An eye bolt has a threaded shank that screws into a tapped hole or through a clearance hole with a nut on the back. An eye nut has an internal threaded hole and is threaded onto a bolt or stud. Eye nuts are typically used where you need a lifting or attachment point at the end of a threaded rod or stud.

The black oxide finish provides a degree of surface protection and reduces oxidation compared to bare steel, but the primary corrosion resistance comes from the A2 304 stainless steel substrate. This combination performs well in humid indoor environments, light outdoor exposure, and mild industrial settings. For prolonged saltwater or highly acidic environments, A4 316 grade would be more appropriate.

These are listed as Grade 2 / A2 lifting eye hardware. For any overhead or safety-critical lifting application, you must verify the working load limit (WLL) for your specific size against the load requirements of your application, and follow all applicable local safety standards and regulations. When in doubt, consult a qualified engineer before use in load-bearing applications.

Yes — the eye bolts use standard ISO metric coarse pitch threads, which are compatible with standard metric tapped holes and T-slot extrusion hardware (e.g., 2020, 3030, 4040 aluminium extrusion with M5 or M6 T-nuts). Confirm the thread size and pitch of your extrusion hardware before ordering.

Order 1 or 2 pieces if you are prototyping or need a single replacement. The 5-piece and 10-piece packs suit small builds and workshop stock. The 30-piece and 50-piece packs offer a lower per-unit cost and are suited to production runs, bulk fabrication, or stocking a workshop for ongoing projects.

No — eye bolts and eye nuts are sold separately. Select the type (Eye Bolt or Eye Nut) and the thread size you need from the Size dropdown. If you need both a bolt and a nut for the same thread, add each as a separate line item.