Block Pulley | Swiveling Shackle Head | M25 High Load Marine Rigging

This block for heavy loads has a universal head that turns and swivels, making it a useful pulley for complicated rigging. It's a plain bearing block, offering simple dependability for lines under a lot of strain. You can choose a single or dual sheave model depending on what you need. Features and Benefits - Universal swivel head - Turns and rotates 360°, making sure the block always lines up with the rope's path to lower friction and work better. - KN load rating - Each block has a kilonewton (KN) rating, so you know its exact working load limit for safe rigging. - Single or dual sheave options - The dual-pulley model lets you create purchase systems for mechanical advantage, like a boom vang. - Stainless steel and nylon build - The materials combine to give strength where it's needed and low friction on the sheave surface. Applications - Boom vangs and purchases - Use a dual sheave model to build a strong 4:1 or 6:1 vang or outhaul system. - Spinnaker sheet leads - Redirects afterguy or sheet lines from the clew around shrouds or the mast. - Mainsheet systems - Works as the main block in a mainsheet setup on small keelboats and performance dinghies.