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 442 uses a spacer to keep the line in the sheave during intermittent loading.
Product Specifications
Sheave Ø (mm) 16 mm
Sheave Ø (in) 5/8 in
Length (mm) 35 mm
Length (in) 1 3/8 in
Weight (g) 12 g
Weight (oz) .44 oz
Maximum line Ø (mm) 5 mm
Maximum line Ø (in) 7/32 in
Fasteners (mm) 4 RH mm
Fasteners (in) 8 RH in
Mounting hole spacing (mm) 27 mm
Mounting hole spacing (in) 1 1/16 in
Maximum working load (kg) 113 kg
Maximum working load (lb) 250 lb
Breaking load (kg) 544 kg
Breaking load (lb) 1200 lb








