Metric Eye Bolts M6–M20 Lifting Ring Screws | Zinc Plated Carbon Steel

Match the thread diameter (M6, M8, M10, etc.) to your tapped hole or nut. For length, measure the material thickness you're threading into and add at least 1–1.5× the bolt diameter for adequate thread engagement. For example, an M8 bolt threading into 20mm of material typically needs at least 20mm (≈3/4") of thread length. When in doubt, size up to the next longer option.

Load capacity varies by thread size and installation method. Generally, a fully threaded and properly anchored M8 eye bolt can handle in-line loads of several hundred pounds, while M16–M20 sizes are rated for significantly higher loads. Always consult a load table for your specific size and never exceed the rated working load limit (WLL). Contact us to confirm specs for your application.

The zinc/galvanized plating provides moderate corrosion resistance, making these eye bolts suitable for occasional outdoor exposure or light-moisture environments such as covered patios or garages. For prolonged outdoor, marine, or chemically aggressive environments, stainless steel eye bolts are generally recommended for long-term reliability.

Yes. These are ISO metric coarse-thread eye bolts. M6, M8, M10, M12, M14, M16, M18, and M20 all follow standard metric coarse pitch (e.g., M8 = 1.25mm pitch). They are compatible with any standard metric nut or tapped hole of the matching size available at hardware stores worldwide.

Standard non-shouldered eye bolts like these are designed for in-line (vertical) loads only. Applying angular or side loads significantly reduces the safe working load and can cause failure. For angled lifting applications, a shouldered or swivel eye bolt is generally recommended. Always rig in-line with the eye ring plane aligned to the direction of pull.

Thread the bolt fully into a pre-tapped hole or through a clearance hole with a standard metric nut on the back. Tighten securely so the eye ring is oriented in the direction of the load. Do not over-torque, which can distort the ring geometry. For critical lifting applications, always verify the installation with a qualified rigger and perform a proof load test before use.

The 1Pcs option is ideal when you need a single replacement anchor point or want to test a size before committing. The 5Pcs option offers a lower per-unit cost and is suited for projects requiring multiple anchor points — such as rigging a workbench hoist, hanging equipment racks, or securing multiple cable runs across a ceiling.