Match the thread diameter to your tapped hole or anchor point. As a general rule, the bolt length should be at least 1.5× the thread diameter for adequate embedment in concrete. For example, an M8 bolt is typically used with 50–100mm (≈2–4") lengths for light-to-medium loads. When in doubt, go one size up. If you need help selecting the right size, contact us with your load requirements and base material details.

Working load limits vary by thread size and embedment depth. Generally, M6 bolts are suited for lighter rigging tasks, while M16–M20 bolts are used for heavier structural lifting. Always consult a load table and apply an appropriate safety factor (typically 4:1 or higher) for overhead lifting. Contact us to confirm the working load limit for your specific size.

Yes. These are made from 304 stainless steel, which provides good corrosion resistance in most outdoor and humid environments. For highly aggressive marine or chemical environments, 316 stainless steel is generally recommended. Contact us to confirm suitability for your specific conditions.

These use standard ISO metric coarse threads, compatible with M6, M8, M10, M12, M14, M16, and M20 threaded holes and fixtures. They are not compatible with UNC/UNF inch-standard threads. If your existing hardware uses inch threads, these anchors will not fit without an adapter.

Round rings allow the hook or shackle to rotate freely in any direction, making them ideal for multi-directional lifting and rigging where the load angle may shift. Triangle rings provide a fixed, flat attachment point that is typically used with flat hooks or straps where a stable, non-rotating connection is preferred. Both types are available in the same size range.

These sleeve anchors are designed primarily for solid concrete and solid masonry. They can generally be used in solid brick or block, though holding strength may be lower in hollow or lightweight materials. They are not recommended for wood, drywall, or soft substrates. When in doubt, test a sample installation and verify pull-out strength before committing to a full installation.

Divide the mm value by 25.4. Quick reference: 50mm ≈ 2", 60mm ≈ 2.4", 80mm ≈ 3.1", 100mm ≈ 3.9", 120mm ≈ 4.7", 150mm ≈ 5.9", 200mm ≈ 7.9", 250mm ≈ 9.8". All lengths are measured as the usable bolt shank length.