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Experience durability and performance with the Harken Protexit 50mm Thrudeck Block. Ideal for intense racing and frequent hoists, this block defies wear from side-angle loading. Its all-aluminum, wear-resistant housing ensures smooth line handling at any angle. With higher working loads and Delrin sideload balls, it stands up to extreme conditions while minimizing halyard wear.
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 1/2 in |
| Fasteners (mm) | 6 FH mm |
| Fasteners (in) | 1/4 FH in |
| Length (mm) | 117 mm |
| Length (in) | 4 5/8 in |
| Weight (g) | 128 g |
| Weight (oz) | 4.5 oz |
| Maximum working load (kg) | 800 kg |
| Maximum working load (lb) | 1760 lb |
| Breaking load (kg) | 1600 kg |
| Breaking load (lb) | 3528 lb |
| A (mm) | 23.3 mm |
| Sheave Ø (mm) | 50 mm |
| Sheave Ø (in) | 1 15/16 in |
| Fastener spacing (mm) | 90 mm |
| B (mm) | 71.5 mm |
Item 1203.