Metric Eye Bolts Zinc Plated — M6 M8 M10 M12 M14 M16 M18 Lifting Screw Eye

Generally, the shank should be long enough to pass fully through the material and achieve at least 1.5× the bolt diameter in thread engagement depth. For example, an M8 eye bolt typically needs at least 12mm of thread engagement in steel, or more in softer materials like wood. When in doubt, select a longer shank and secure with a nut and washer on the back face.

Quick length reference: 12mm ≈ 0.47" | 16mm ≈ 0.63" | 20mm ≈ 0.79" | 25mm ≈ 0.98" | 30mm ≈ 1.18" | 40mm ≈ 1.57" | 50mm ≈ 1.97" | 60mm ≈ 2.36"

Working load limits vary by thread size, shank engagement, and load angle. As a general guideline for vertically applied loads: M8 typically handles around 100–150 kg, M10 around 200–300 kg, and M12 around 300–500 kg. Angled loads significantly reduce safe working capacity — a 45° angle can reduce capacity by roughly 30–50%. Always verify with a qualified engineer for critical lifting applications.

The zinc plating provides moderate corrosion resistance suitable for general outdoor use in dry to mildly humid conditions. For prolonged exposure to rain, coastal salt air, or direct water contact, stainless steel eye bolts are generally the more appropriate choice. Inspect zinc-plated hardware regularly in outdoor installations and replace if corrosion is visible.

Yes. These eye bolts use standard ISO metric coarse thread pitch (the most common metric thread standard), compatible with standard metric hex nuts, wing nuts, and pre-tapped holes following ISO 68-1 / DIN 13 specifications. They are not compatible with UNC or UNF inch-thread hardware.

These eye bolts are designed for general lifting and rigging tasks. For certified overhead lifting in commercial or industrial environments, you should: (1) verify the working load limit for your specific size, (2) use a shoulder-type eye bolt for any angled load application, and (3) follow ASME B18.15 or applicable local safety regulations. When in doubt, consult a licensed rigging engineer.

All three options are the same eye bolt — only the pack quantity differs. The 5-pcs and 10-pcs packs offer a lower per-unit cost, making them practical for projects that require multiple anchor points (such as rigging a load with four corner eyes) or for keeping spares on hand for future use.

In wood: pre-drill a pilot hole slightly smaller than the thread diameter, then thread the eye bolt in by hand or with a rod through the eye for torque. In concrete or masonry: use a metric threaded anchor insert (sleeve anchor or drop-in anchor) sized to match the eye bolt thread, then thread the eye bolt into the set anchor. Always ensure the anchor is rated for the intended load.

In most cases, these eye bolts are sold as individual fasteners without nuts or washers included. Standard ISO metric nuts and washers in the matching size (M6, M8, M10, etc.) are widely available at hardware stores and can be paired with these bolts for through-bolt installations.