OverviewWhen 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.Specifications Specification Value A (mm) 19.7 mm B (mm) 105.6 mm Breaking load (kg) 800 kg Breaking load (lb) 1764 lb Fastener spacing (mm) 120 mm Fasteners (in) 1/4 Fh in Fasteners (mm) 6 FH mm Length (in) 5 5/8 in Length (mm) 144 mm Maximum line Ø (in) 5/16 in Maximum line Ø (mm) 8 mm Maximum working load (kg) 400 kg Maximum working load (lb) 880 lb Sheave Ø (in) 1 9/16 in Sheave Ø (mm) 40 mm Weight (g) 122 g Weight (oz) 4.3 oz FAQs What warning is given regarding following installation instructions?Strictly follow all instructions to avoid accident, vessel damage, personal injury, or death. What should you use to clean the block during maintenance?Clean the block periodically using a mild detergent and water solution. Spin the sheave to distribute the solution evenly, then flush with fresh water. What should you periodically check during maintenance?Inspect all fasteners periodically to ensure they are secure. Where does the block bear load during mounting?The block should bear against the deck at the cutout, rather than on the mounting fastener. How should the block be mounted to a cored deck?When mounting to cored decks, you must reinforce and seal the deck to provide a good bearing surface and to prevent water ingress. How should the block be positioned before drilling mounting holes?Push the block towards the edge of the cutout before marking and drilling mounting holes. Can you use teak cleaners on this block?Exposure to some teak cleaners and other caustic solutions can cause discoloration, and such damage is not covered under warranty. What caution is given concerning the use of caustic cleaners?Exposure to teak cleaners or other caustic solutions may discolor parts and is not covered under warranty. How does the angle of deflection affect block load?Block loads double at 180° deflection. Select blocks carefully according to the angle to avoid exceeding their load limits. What type of bearing system does this block use?It features a composite sleeve bearing with sideload ball bearings, improving performance under load. What type of bearing system does the Protexit block utilize?It uses a composite sleeve bearing with sideload ball bearings designed to handle sideloads and extreme conditions. Who do I contact for help with installation, servicing or advice?Contact the SailRACE team — as certified marine experts we're happy to help with product selection, installation and after-sales servicing, before and after your purchase. {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What warning is given regarding following installation instructions?", "acceptedAnswer": {"@type": "Answer", "text": "Strictly follow all instructions to avoid accident, vessel damage, personal injury, or death."}}, {"@type": "Question", "name": "What should you use to clean the block during maintenance?", "acceptedAnswer": {"@type": "Answer", "text": "Clean the block periodically using a mild detergent and water solution. 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