Lifting Eye Bolts A2 Stainless Steel — M8 M10 M12 M14 Eye Screws

Match the thread diameter to your tapped hole or nut — M8 (≈5/16"), M10 (≈3/8"), M12 (≈1/2"), or M14 (≈9/16"). For shank length, the bolt should generally engage at least 1.5× the thread diameter into the material. For example, an M10 bolt should thread in at least 15mm (≈19/32"). When in doubt, choose a longer shank and use a nut to control engagement depth. If you're threading into wood, use a longer shank and a washer to distribute the load.

WLL varies by thread size and lift angle. As a general guideline, M8 eye bolts typically support around 0.16–0.32 t vertically, M10 around 0.25–0.5 t, M12 around 0.4–0.8 t, and M14 around 0.63–1.25 t. Always derate for angled lifts — typically 50% at 45° and up to 75% at 90° side load. Confirm the rated WLL for your specific size before use.

Yes. A2 (304) stainless steel provides good corrosion resistance in most outdoor and light marine environments, including salt spray and humid conditions. For prolonged saltwater immersion or highly chlorinated environments (e.g., pool hardware), A4 (316) stainless is generally recommended. These bolts are well-suited for boat deck fittings, outdoor rigging, and garden structures.

These are metric coarse-thread eye bolts (ISO 261 / DIN 580 style). M8 has a 1.25mm pitch, M10 has 1.5mm, M12 has 1.75mm, and M14 has 2.0mm. They are not compatible with UNC/UNF imperial threads. If your existing hardware uses imperial threads (e.g., 5/16"-18 UNC), these will not fit. Confirm your application uses metric threads before ordering.

Standard DIN 580-style eye bolts are designed primarily for vertical (axial) loads. For angled lifts, the WLL must be significantly derated — typically 50% at 45° and up to 75% at 90° side load. Always orient the eye in the plane of the load direction. For frequent or heavy angled lifts, swivel hoist rings are generally a safer choice.

Each listing offers pack quantities of 1, 2, 3, 4, 5, or 10 pieces. Larger packs are priced at a lower per-unit cost compared to single-piece orders. Select your thread size and length first, then choose the pack quantity that matches your project needs. For quantities beyond 10, please contact us.

A2 stainless steel (AISI 304) has inherent corrosion resistance built into the alloy — roughly 18% chromium and 8% nickel — so there is no surface coating to chip, scratch, or wear away. Zinc-plated steel relies on a sacrificial zinc layer that degrades over time, especially outdoors or in wet conditions. Hot-dip galvanized steel offers better outdoor durability than zinc plating but is generally bulkier and harder to source in small metric sizes. For most indoor and outdoor rigging applications, A2 stainless is a practical, long-lasting choice.