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.
Sheave Ø: 16mm - 5/8in
Length: 46mm - 1-13/16in
Weight: 18g - 0.63oz
Maximum line Ø: 5mm - 7/32in
Shackle pin Ø: 4mm - 5/32in
Fasteners: 4 RHmm - #8 RHin
Maximum working load: 113kg - 250lb
Breaking load: 339kg - 750lb
Sheave Ø: 16mm - 5/8in
Length: 46mm - 1-13/16in
Weight: 18g - 0.63oz
Maximum line Ø: 5mm - 7/32in
Shackle pin Ø: 4mm - 5/32in
Fasteners: 4 RHmm - #8 RHin
Maximum working load: 113kg - 250lb
Breaking load: 339kg - 750lb