Open Hook Eye Bolt Shield Anchor Expansion Bolts — M6 M8 M10 M12

Match the bolt diameter to your anchor sleeve and the load-bearing requirement. As a general guide:

• M6 (≈1/4") — lighter fixtures, decorative hangers, up to typically ~50 kg in solid concrete
• M8 (≈5/16") — medium loads, shelving brackets, swing hangers
• M10 (≈3/8") — structural hangers, cable trays, heavier equipment
• M12 (≈1/2") — heavy-duty overhead suspension, fall-arrest anchors, industrial rigging

Always verify against the anchor's technical data sheet for your specific substrate and embedment depth.

Pull-out strength depends on bolt size, material grade, embedment depth, and substrate condition. Generally, M6 shield anchors in solid concrete achieve tensile capacities in the range of several hundred Newtons, while M12 anchors can typically handle several kilonewtons under ideal conditions. For safety-critical or overhead load applications, always consult a structural engineer and refer to the anchor's certified load data.

A4 (316) Stainless Steel — generally suitable for marine, coastal, and high-humidity environments due to its molybdenum content.
A2 (304) Stainless Steel — performs well in most outdoor and mildly corrosive conditions.
201 Stainless Steel — moderate corrosion resistance; best for sheltered outdoor or indoor use.
Iron (Zinc Plated) — suited for dry indoor applications; prolonged outdoor or wet exposure may cause surface oxidation over time.

These bolts use standard metric coarse threads conforming to ISO 68-1. The M6, M8, M10, and M12 designations refer to the nominal thread diameter in millimeters. They are compatible with standard metric nuts, lock nuts, and flat washers following DIN/ISO specifications — all widely available at hardware stores across the US.

Shield anchor expansion bolts are typically designed for solid concrete, brick, block, and natural stone. They are generally not recommended for hollow-core block, lightweight aerated concrete (AAC), or drywall without engineering review. Always pre-drill to the correct diameter and depth specified for each size, and ensure the substrate is free of cracks or voids at the anchor location.

A2 (304) is the most common stainless grade and handles most outdoor and indoor environments well. It is a cost-effective choice when chloride or salt exposure is minimal.

A4 (316) adds molybdenum to the alloy, providing significantly better resistance to chlorides, salt spray, and acidic environments. It is the preferred choice for coastal installations, swimming pool surrounds, marine applications, or anywhere salt air is present.

For budget-conscious dry indoor projects, 201 stainless or zinc-plated iron are practical alternatives.

We offer 1, 2, 5, 10, and 20-piece packs. For a single repair or test fit, the 1- or 2-piece pack is ideal. For renovation projects, the 5- or 10-piece pack typically offers a better per-unit price. Contractors or larger installations generally find the 20-piece pack the most economical option. Select your pack quantity from the variant selector above.