Harken 4mm Shallow Bow Shackle - Part #2131

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Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter.

Bow shackles are best for multidirectional loads. Shallow bow shackles are proportionally wider for their length than regular bow shackles.


Shackle pin Ø (mm)4 mm
Shackle pin Ø (in)5/32 in
Weight (g)8.5 g
Weight (oz)0.3 oz
A (mm)16 mm
A (in)5/8 in
B (mm)8 mm
B (in)5/16 in
C (mm)11 mm
C (in)7/16 in
Maximum working load (kg)367 kg
Maximum working load (lb)810 lb
Breaking load (kg)735 kg
Breaking load (lb)1620 lb