Closed Hook Eye Bolt with Expansion Anchor — Galvanised & 304 Stainless | M6.5 M8 M10 M12

Match the bolt diameter to your load requirements and the anchor's rated capacity. As a general rule, M6.5 and M8 are typically suitable for lighter hanging tasks — shelves, light fixtures, cables — while M10 and M12 are generally used for heavier loads such as swings, hammocks, or structural rigging. Always verify the anchor's pull-out strength against your specific substrate before installation.

For reference: M6.5×40mm (≈1.57"), M8×45mm (≈1.77"), M10×60mm (≈2.36"), M12×70mm (≈2.76").

Load capacity depends on the bolt size, material, and the substrate. In most cases, M8 anchors set in solid concrete can typically handle several hundred pounds of tensile load, while M12 anchors are rated higher. Always consult a structural engineer for safety-critical applications and refer to the anchor's rated pull-out values for your specific substrate and installation depth.

The 304 stainless steel variants are generally suitable for outdoor and damp environments, offering good resistance to rust and corrosion. The galvanised iron variants provide a protective zinc coating that resists moisture in typical outdoor conditions, but are best suited for sheltered or semi-exposed locations. For marine or highly corrosive environments, 316 stainless steel is typically recommended instead.

These bolts use standard metric coarse threads (M6.5, M8, M10, M12), compatible with standard metric nuts, turnbuckles, and fittings. The expansion anchor sleeve is designed to work specifically with the included bolt diameter — mixing sizes is not recommended and may compromise holding strength.

Rawl shield expansion anchors are generally compatible with solid concrete, brick, and dense masonry. They are not recommended for hollow block, drywall, or soft substrates without additional support. Always drill to the correct depth and diameter as specified for each anchor size to ensure a secure mechanical grip.

Choose galvanised iron if you need a cost-effective option for indoor or sheltered outdoor use where corrosion exposure is limited. Choose 304 stainless steel if the installation will be regularly exposed to moisture, humidity, or outdoor weather. Stainless steel also offers a cleaner, more polished appearance for visible installations.

Drill a hole in the substrate to the correct diameter and depth for your anchor size. Insert the expansion anchor sleeve into the hole flush with the surface. Thread the closed hook eye bolt into the anchor and tighten with a wrench — as the bolt is tightened, the sleeve expands against the hole walls to create a secure mechanical grip. Do not overtighten, as this can crack the substrate or damage the anchor.