M6 Eye Bolts 304 Stainless Steel – Threaded Ring Hanging Screws for Catenary Wire & Rigging

Measure the thickness of the material you are fastening through, then add enough thread engagement — generally at least 1.5× the bolt diameter (about 9mm for M6). For example, a 30mm (≈1-3/16") bolt works well for materials up to about 20mm thick. If you need a flush or recessed installation, choose a longer option. When in doubt, size up.

Quick reference: 20mm (≈13/16") for thin panels, 50mm (≈2") for standard 2× lumber, 80–100mm (≈3-1/8"–3-15/16") for heavy timber beams.

Working load limits vary by installation angle and substrate. An M6 304 stainless steel eye bolt can generally support a straight vertical load of approximately 100–150 kg (220–330 lbs) when properly installed in solid material. Angled loads reduce capacity significantly — a 45° angle can reduce the working load by up to 30%.

Always apply a safety factor of at least 4:1 and consult a structural engineer for critical or overhead load-bearing applications.

Yes. 304 stainless steel (18-8) offers good corrosion resistance for most outdoor environments including rain, humidity, and mild coastal exposure. These bolts are well-suited for garden catenary wire, pergola lighting, and covered outdoor structures.

For highly aggressive saltwater or marine environments with constant immersion or salt spray, 316 stainless steel is generally recommended for longer service life.

These eye bolts use the standard metric M6 coarse thread (M6 × 1.0 pitch), which is the most common M6 thread specification worldwide. They are compatible with standard M6 nuts, M6 threaded inserts, and tapped holes following ISO metric thread standards — the same thread found on the vast majority of M6 hardware sold in the US and internationally.

Full Thread (b = Full Thread): The threaded shank runs the entire length of the bolt. Available on 20–50mm lengths. Ideal for thinner materials or when maximum thread engagement is needed throughout the full depth of the hole.

b = 40mm: The bolt has a fixed 40mm threaded section at the tip, with an unthreaded shank above it. Available on 55–100mm lengths. Better suited for longer bolts passing through thicker materials where only the end needs to engage a nut or threaded insert — the smooth shank reduces friction and makes installation easier.

Yes. These M6 threaded ring eye bolts are commonly used as anchor points for catenary wire, string light cables, and suspension rigging. The closed ring head accepts standard carabiners, S-hooks, wire rope thimbles, and small shackles.

We recommend confirming the ring inner diameter matches your specific hardware (carabiner gate width, thimble size, etc.) before ordering. Contact us if you need exact ring dimensions.

Choose from 1, 3, 5, 10, or 20 pieces per order. Here are some typical project quantities:

• Single catenary wire span: 2 bolts (one per anchor end)
• Pergola with 3 wire runs: 6–8 bolts
• Workshop cable management grid: 10–20 bolts
• Multi-span garden lighting: 10–20 bolts

Ordering 10 or 20 pieces offers better per-unit value and ensures you have spares for future repairs or extensions.