Harken 57mm Ratchet Block - Swivel, Becket, Cam Cleat
Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.
Note: Maximum working loads and breaking loads for blocks are based on cam strengths
| Part Number | HKN-2139 |
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 125 mm |
| Length (in) | 4 15/16 in |
| Weight (g) | 255 g |
| Weight (oz) | 9 oz |
| Shackle pin Ø (mm) | 5 mm |
| Shackle pin Ø (in) | 3/16 in |
| Maximum line Ø (mm) | 10 mm |
| Maximum line Ø (in) | 3/8 in |
| Maximum working load (kg) | 272 kg |
| Maximum working load (lb) | 600 lb |
| Breaking load (kg) | 680 kg |
| Breaking load (lb) | 1500 lb |
| Holding power | 10:1 |
