Harken 1200 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.   Sheave Ø (mm) 30 mm Sheave Ø (in) 1 3/16 in Length (mm) 75 mm Length (in) 2 15/16 in Weight (g) 37 g Weight (oz) 1.3 oz Maximum line Ø (mm) 8 mm Maximum line Ø (in) 5/16 in Fasteners (mm) 5 FH mm Fasteners (in) #10 FH in Fastener spacing (mm) 57 mm A (mm) 18.2 mm B (mm) 45.7 mm Maximum working load (kg) 250 kg Maximum working load (lb) 550 lb Breaking load (kg) 500 kg Breaking load (lb) 1103 lb