Harken Element 6261 is a 60 mm single swivel block from Harken’s value-engineered aluminium block range. Element blocks use forged aluminium sideplates with hardcoat anodising, a composite bearing sheave with journal bearing and stainless-steel axle and attachment hardware. The single-sheave layout provides a straightforward lead for sheets and control-line systems. This version also includes an integral becket for terminating the standing end of a purchase. Published specifications include up to 14 mm line, a 1100 kg maximum working load and a 2200 kg breaking load. Select the fitting by line size, attachment style and working load, and install fixed versions to suitable supporting structure.