Shop 16 mm Blocks at Razzo Sailing Store. Find technical support, free shipping and full range of Sailboat 16 mm Blocks. The 16 mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies.

The bearing system uses stainless steel balls in a captive grooved race and has a 113 kg (250 lb) maximum working load—the highest on the market compared to similarly sized blocks.

The 442 uses a spacer and the 404 uses an O-ring to keep the line in the sheave during intermittent loading.

The 467 and 484 use a narrow sheave for extremely small control lines and have a ferrule head for soft attachments. They use the same high load ball system. The 484 features a bronze sheave for added durability.

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