M18 M20 M22 Forged Eye Bolts with Threaded Shank — A2 Stainless Steel Lifting & Rigging Rings

Generally, the threaded shank should pass fully through the mounting material with at least 1–1.5× the bolt diameter of thread engagement remaining on the back face. For example, an M18×80mm (≈3.15") bolt installed in a 50mm timber leaves 30mm of thread — typically sufficient for light overhead loads. When in doubt, choose a longer shank and secure with a nut and washer on the back face for maximum pull-out resistance.

Working load limits depend on the diameter, installation angle, and whether the bolt is shouldered or plain-shank. As a general reference, a properly installed M18 forged eye bolt typically carries 500–800 kg WLL in a straight vertical pull. Always consult a structural engineer and derate for angled loads — a 45° sling angle can reduce WLL by up to 70%. Contact us to confirm rated capacity for your specific size.

Yes. The A2 (304) stainless steel construction provides strong resistance to atmospheric corrosion, rain, and humidity, making these bolts well-suited for outdoor catenary wire installations, garden structures, and covered marine environments. For fully submerged or high-chloride saltwater exposure, A4 (316) grade is generally recommended instead.

These eye bolts use standard ISO metric coarse threads (M18, M20, or M22). They are compatible with standard metric nuts, flat washers, threaded inserts, and rigging hardware following DIN/ISO specifications. Always verify thread pitch with your mating hardware before installation.

Yes — the large forged ring opening is sized to accept catenary wire clips, shackles, carabiners, and turnbuckles commonly used in overhead cable runs and garden lighting wire systems. The M20 and M22 sizes are particularly popular for tensioned wire trellis and catenary lighting installations where a robust anchor point is needed.

In most structural applications, yes. Using a flat washer and locking nut on the back face distributes load across a wider bearing area and prevents the bolt from pulling through softer materials like timber or composite panels. For through-bolt installations in steel plate, a nut alone is generally sufficient. A thread-locking compound is recommended for vibration-prone environments.

All options are the identical bolt — the quantity simply reflects how many pieces ship in one order. The per-unit price decreases as quantity increases, so the 10 pcs pack offers the best value for larger projects, trade buyers, or installations requiring multiple anchor points along a catenary wire run.