SCHAEFER 7 Series Double Block, 17 oz. Category_Tools this innovative line of blocks

this innovative line of blocks turns fiber-reinforced composite construction into a reliable strength-to-weight ratio you can depend on

Element: Harken design and engineering—value-price

With a safe working load of 4

martensitic and semi-austenitic

SCHAEFER 7 Series Double Block, 17 oz. Category_Tools this innovative line of blocksSchaefer Double Stainless Steel Block allows a 2: 1 or 3: 1 purchasing system. Universal head allows one block to function as a front shackle, side shackle or swivel shackle block. Large sheave diameter and high working loads make them suitable for sheet and control blocks on medium to large offshore boats. Beckets are removable. 704 series are aluminum; 705 blocks are stainless. Where applicable, blocks use 1 4" fasteners.< p>