Eyebolt design features allow loading at other angles only within what plane?

• A. The plane of the loop
• B. Any plane
• C. The vertical plane
• D. The horizontal plane

Answer: (A)

The important idea is that an eyebolt is designed to take load in the plane of its loop. When the load acts in that plane, the force passes through the bolt’s axis so the load is mostly pure tension along the threaded shank. This keeps stress concentrated where the eyebolt is strongest and minimizes bending moments on the eye and the shank, reducing the risk of deformation, thread damage, or eye failure.

If you apply force outside that plane, you introduce a bending component. That bending can cause uneven stress, deformation of the eye, weakened thread engagement, or slipping of the load, which dramatically lowers the effective capacity and can lead to failure. So the safe, intended loading direction is within the plane of the loop.