Formed lower steel clevis clamps both sides of boom web providing true double shear and resistance to bending. All tie rods furnished with right hand National Coarse threads at each end. Adjustable tie rods, pressure grease lubrication and precision roller thrust bearing assures a free swinging jib under all loading conditions.

All booms are constructed from AISE "S" shapes using the first listed weight only for each noted "B" dimension beam depth size. Thrust and pull loads include a 15% allowance of live load jib crane capacity for weight of hoist. Above dimensions are for general reference only - for specific installation dimensions, request certified Drawing No. SD-600-7CF. Apply to factory for different capacities, longer booms, different hinge centers ("G" dimension) or any other needed changes.