Fenders endure significant impacts from docking boats, leading to the loosening of bolted joints. In this case, welding was initially considered as a solution. However, this faced several challenges: submerged joints would require underwater welding, and non-submerged joints could be affected by strong coastal winds, potentially compromising the quality of the welds. Additionally, using standard bolts and nuts would necessitate regular retorquing maintenance, which is particularly challenging for joints located in awkward or hard-to-access areas.
To overcome these challenges, HARDLOCK nuts were employed. This solution provided a reliable alternative to both traditional bolted joints and welding. By utilizing HARDLOCK nuts, the need for frequent maintenance related to retorquing was eliminated, and the issues associated with welding in difficult environments were avoided, proving to be a particularly cost-effective solution.
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