Harken Black Magic Air Blocks - Aluminium Footblock with Lockoff (57mm, 75mm)
Use footblocks to redirect lines on the deck. Footblocks with lock-offs temporarily secure sheets. Either metric or imperial flathead fasteners may be used for mounting and are not exposed. Sideplates and sheaves Hard Lube-anodised for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
| Part Number | HKN-3236 |
| Sheave Ø (mm) | 75 mm |
| Length (mm) | 111 mm |
| Weight (g) | 320 g |
| Maximum line Ø (mm) | 14 mm |
| Fasteners (mm) | 8 FH mm |
| Maximum working load (kg) | 2380 kg |
| Breaking load (kg) | 4762 kg |
| Height (mm) | 32 mm |
| Number of fasteners | 4 |
| A (mm) | 11.5 mm |
| B (mm) | 28.5 mm |
| C (mm) | 70.5 mm |
| D (mm) | 21 mm |
| E (mm) | 77 mm |
| F (mm) | 110 mm |
| G (mm) | 17 mm |
