Part No. 1203 When you race HARD, and you rip through as many hoists and douses as we do sailing W-L legs all the time, you should expect to start wearing through the sideplates of your halyard exit block right? Wrong! Thanks to Harken Protexit™ blocks, wear from side angle loading is not inevitable. Protexit’s all-aluminum, wear-resistant housing carefully ushers line in and out no matter the angle. There’s more: Protexit blocks offer higher working loads than any small boat exit blocks we’ve ever made. Protexit aluminum sheaves rotate on sleeve bearings with Delrin® sideload balls so they don’t deform in extreme conditions, while reducing wear on the halyard, too. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates. 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 Sheave Ø (mm) 50 mm Sheave Ø (in) 1 15/16 in Maximum line Ø (mm) 12 mm Maximum line Ø (in) 1/2 in Fasteners (mm) 6 FH mm Fasteners (in) 1/4 FH in A (mm) 23.3 mm B (mm) 71.5 mm Fastener spacing (mm) 90 mm