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Ankerbolts

Thunderbolts / ankerbolts made from a grade 8.8 boron steel, with a self-tapping thread suitable for masonry works. These bolts other a secure hold in to concrete, stone and other heavy-duty materials. Thunderbolts can be bought various head types including countersunk, hex flange and the standard hex head. Primarily available in bright zinc plated for medium corrosion resistance.