make these products the best choice for all professional DC power systems

If maximum length (L) is required the threaded end can be unscrewed beyond the sight hole

Stops electrolysis between dissimilar metals

Marine and Repair Specialists

Sail Racing logo graphic at shoulder seam

Ronstan Series 25 Utility Block, Swivel Fork Shackle RF573 tru design make these products the bestSingle, swivel shackle head FEATURES Lightweight durable construction. Economical. Maintenance free Specifications Product Specifications Type of Block Single Sheave diameter (mm) 25mm B. L. (kg) 300 M. W. L. (kg) 150 Max. Rope diameter (mm) 6 Weight (g) 20 Pin (mm) 4