M8 M10 M12 Eye Bolts Ring Screws – Zinc Plated for Wire Fencing & Straining

Generally, the shank should be long enough to pass fully through your material and engage at least 1.5× the bolt diameter of thread on the far side. For example, an M8 bolt through a 20mm (≈3/4") board typically needs a shank of at least 30–40mm (≈1.2"–1.6"). Measure your material thickness first, then add the required thread engagement depth. When in doubt, choose the next length up.

Working load limits vary by diameter, installation angle, and the material they're anchored into. In most cases, M8 eye bolts handle light-to-medium loads, M10 handles medium loads, and M12 is suited for heavier straining applications. These are general-purpose fasteners — for overhead or safety-critical lifting, always consult a structural engineer and use certified lifting hardware.

The zinc plating provides a basic corrosion barrier that is generally adequate for sheltered outdoor use, garden fencing, and typical straining wire installations. For prolonged exposure to rain, coastal salt spray, or permanently wet conditions, a stainless steel eye bolt is typically the better long-term choice.

These eye bolts use standard ISO metric coarse threads — M8×1.25, M10×1.5, and M12×1.75. They are compatible with any standard metric nut, flat washer, or threaded insert in the matching size, available at hardware stores across the US and internationally.

Yes — these eye bolts are specifically designed for straining and tensioning applications. The closed ring head accepts standard wire rope clips, carabiners, and turnbuckle hooks typically used with metric wire rope in agricultural and perimeter fencing. Make sure to select a diameter that matches your wire gauge and expected tension load.

For light garden fencing and trellis wire, M8 is generally sufficient. M10 is a popular choice for standard agricultural and perimeter fencing with medium wire gauges. M12 is recommended for heavy-duty straining, larger wire gauges, or where higher tension is required. When in doubt, size up — a slightly larger bolt provides a meaningful safety margin at minimal extra cost.

In most installations, a matching metric nut and flat washer are recommended to distribute the load and prevent pull-through, especially in softer timber. These accessories are not included and should be sourced separately in the matching M8, M10, or M12 size from your local hardware store.