Skip to content Skip to navigation menu

HARKEN16 mm Flip-flop Block


16 mm Flip-flop Block

Model # 5400031Mfg # 437


Customer Reviews
In stock online.

Product Description

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.
  • Sheave Ø (mm)16 mm
  • Sheave Ø (in)5/8 in
  • Length (mm)34 mm
  • Length (in)1 5/16 in
  • Weight (g)21 g
  • Weight (oz)0.75 oz
  • Maximum line Ø (mm)5 mm
  • Maximum line Ø (in) 7/32 in
  • Fasteners (mm)4 RH mm
  • Fasteners (in)#8 RH in
  • Maximum working load (kg)113 kg
  • Maximum working load (lb)250 lb
  • Breaking load (kg)544 kg
  • Breaking load (lb)1200 lb


16 mm Flip-flop Block

Max Line Diameter 3/16" or 5 mm
SWL 250
Type Single Pivoting