Harken Aluminium Mastbase Block - 76mm
Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.
| Part Number | HKN-1990 |
| Height (mm) | 95 mm |
| Height (in) | 3 3/4 in |
| Length (in) | 3 13/16 in |
| Sheave Ø (mm) | 76 mm |
| Sheave Ø (in) | 3 in |
| Length (mm) | 97 mm |
| Width (mm) | 32 mm |
| Width (in) | 1 1/4 in |
| Weight (g) | 326 g |
| Weight (oz) | 11.5 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Fasteners (mm) | 8 FH mm |
| Fasteners (in) | 5/16 FH in |
| Maximum working load (kg) | 2273 kg |
| Maximum working load (lb) | 5000 lb |
| Breaking load (kg) | 4545 kg |
| Breaking load (lb) | 10000 lb |
| Number of fasteners | 4 |
