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) safe working load - the highest on the market compared to similarly sized blocks.

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

Use for:
Dinghy control lines, Big Boat leech lines, Downhauls, Traveler controls, Spinnaker pole trip lines, Outhauls, Cunninghams, Halyards on prams

Sheave dia.: 5/8 in (16 mm)
Length: 1-1/8 in (29 mm)
Weight: 0.33 oz (10 g)
Max. line dia.: 7/32 in (5 mm)
Max. working load: 250 lb (113 kg)
Breaking load: 1200 lb (544 kg)