Boat owners and marine professionals, this Schaefer 5 Series block is built to handle serious loads with reliable performance! With a 1750lb safe working load (that's 795kg for our metric friends), this block can handle demanding applications without breaking a sweat. The aluminum cheeks provide excellent strength-to-weight ratio, while the stainless steel base offers corrosion resistance that holds up in saltwater environments. The Delrin sheave is the real star though - it's incredibly durable, UV resistant, and creates minimal friction for smooth operation. The construction quality is exactly what you'd expect from Schaefer - precision machining, robust materials, and attention to detail that ensures years of reliable service. I've used these for everything from mainsheet systems to halyard leads, and they perform flawlessly in all conditions. The swivel action is smooth, the sheave rotates freely without binding, and the overall design minimizes wear on your lines. Whether you're upgrading your boat's rigging, building a new system, or need reliable blocks for commercial applications, this Schaefer block delivers professional-grade performance. The 5 Series is known for being workhorse blocks that provide excellent value without sacrificing quality. If you need blocks that you can trust when the loads get heavy and the conditions get tough, this Schaefer model has the proven track record and quality construction to handle whatever you throw at it. It's one of those marine components where the quality is immediately apparent when you handle it, and the performance proves it was worth the investment.
Free 30-day returns 
Free 30-day returns
