When sourcing Come Along Clamps, the most critical factor is the Safe Working Load (SWL) or Rated Capacity, which must align with your specific tensioning needs. You should prioritize clamps made from high-strength forged alloy steel or heat-treated aluminum alloy to ensure a balance between durability and weight. Pay close attention to the jaw design; for wire rope, look for parallel jaws to prevent cable deformation, while for bare conductors (like ACSR), ensure the jaws are contoured to provide maximum grip without damaging the outer strands. Additionally, verify that the spring-loaded gate or latch mechanism operates smoothly to prevent the cable from slipping out during tensioning.