Grab hooks are intended to shorten or hold a length of chain and are well suited for logging, oil & gas, pulling, towing, and transport.
The shoulder should be in full contact with the surface of the object being lifted. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Use eye bolts at a horizontal angle greater than 45°. Sling strength at 45° is 71% of vertical sling capacity.Probably the most popular type of hook is an eye hook with a latch. The primary advantages of an eye hoist hook with a latch are strength and security. While eye hooks don't look like much, they have the capacity to lift up to 11 tons.