Stainless Steel Eye Bolts & Eye Nuts — A4 316 Metric Thread M6 to M36

Match the thread size to your existing hardware or tapped hole. M6 (≈1/4" equiv.) is suitable for light-duty tasks, while M12 and above are generally used for heavier rigging and lifting applications. As a quick reference: M6 ≈ 1/4", M8 ≈ 5/16", M10 ≈ 3/8", M12 ≈ 1/2", M16 ≈ 5/8", M20 ≈ 3/4". Always verify the thread pitch and shank diameter against your application requirements before ordering.

Working load limits vary by size and load angle. As a general guideline, M6 eye bolts typically handle lighter loads, while M20 and above are suited for heavier lifting. Always derate the working load when the load is applied at an angle — a 45° angle typically reduces the rated capacity by around 30%, and a 90° angle by around 50%. Never exceed the rated capacity. Contact us to confirm specific load ratings for your chosen size.

Yes. These are made from A4 (316) stainless steel, which contains molybdenum for significantly improved resistance to chloride-induced corrosion compared to standard 304 stainless. They are generally well-suited for marine rigging, outdoor structures, coastal installations, and environments with exposure to salt spray or moisture.

These use standard ISO metric coarse thread (M6 through M36), manufactured to DIN/ISO tolerances. They are compatible with standard metric nuts, bolts, threaded rod, and tapped holes following metric specifications. They are not compatible with UNC or UNF inch-standard threads — if your existing hardware is imperial, please verify before ordering.

An eye bolt has an externally threaded shank that screws into a tapped hole or passes through a clearance hole and is secured with a nut on the back side. An eye nut has an internal thread and is threaded onto a bolt, stud, or threaded rod — it's typically used when you need a lifting or rigging attachment point at the end of a threaded rod. Choose based on your mounting configuration.

For a single-point repair or replacement, 1 or 2 pcs is typically sufficient. For rigging setups requiring multiple attachment points — such as a 4-point lifting frame or a cable tensioning run — the 5 or 10-pack options are generally more practical and offer better per-unit value. Bulk packs (30–50 pcs) are most cost-effective for contractors, fabricators, or trade buyers stocking hardware for ongoing projects.

Yes. The fully closed circular eye loop is designed to accept standard shackles, carabiners, wire rope clips, and hooks. Ensure the shackle pin diameter is compatible with the eye opening of your selected size. For wire rope applications, confirm the eye inner diameter accommodates your rope diameter or end fitting. Contact us if you need dimensional data for a specific size.