Which type of bolt is commonly used in construction and is threaded at both ends?

The stud bolt is commonly used in construction primarily because it is designed to accommodate tension and shear loads effectively. This type of bolt is threaded at both ends, allowing it to be securely anchored in a material while providing flexibility for attaching nuts on both ends. It enables the bolt to hold together two or more components while ensuring a strong, secure connection.

Stud bolts are often favored in situations where a long-distance fastening solution is required, as they can span larger gaps and provide significant clamping force without the need for a head. This makes them ideal for installations involving thicker materials or where access to one side of the joint is limited.

The other options do not fulfill the specific criteria of being threaded at both ends. Acme threads are a type of thread profile designed primarily for power transmission and does not typically appear in standard construction bolts. Hex bolts feature a head for easy tightening and fastening but are not threaded at both ends, making them unsuitable for this particular application. Square threaded bolts, similar to Acme threads, have a specialized profile for specific applications, such as lead screws, which do not align with the broader use cases found in construction.