![[HK-404] HARKEN 16 mm Block](http://www.yachtparts.com.au/cdn/shop/products/404_2206cc53-2eb0-4eee-b47a-a981baab6600_1024x1024.png?v=1554367003)
![[HK-404] HARKEN 16 mm Block](http://www.yachtparts.com.au/cdn/shop/products/404_2206cc53-2eb0-4eee-b47a-a981baab6600_480x480.png?v=1554367003)
The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load. The 404 uses an O-ring to keep the line in the sheave during intermittent loading.