Correct option is C
A
rag bolt is a type of
foundation bolt used to fix heavy machinery or structures to concrete foundations. The rag bolt has an irregular, often jagged, or toothed surface at its embedded end, which provides a strong grip within the concrete. This irregular shape prevents the bolt from pulling out once the concrete sets. Rag bolts are typically used where dismantling or repositioning is not required.
Purpose: Foundation bolts like rag bolts anchor equipment, columns, or machines securely to concrete bases.
Shape of Embedded End: Rag bolts have a uniquely rough or irregular surface at the embedded end to enhance mechanical interlock with the concrete.
Common Applications: Used in installing engines, compressors, columns, and other machinery in workshops and factories.
Concrete Setting: The bolt is set into wet concrete and remains firmly locked once the concrete hardens.
Material: Made of strong materials like steel to resist tension and shear forces.
Types of Foundation Bolts: Apart from rag bolts, there are other types such as "J" bolts, "L" bolts, and Lewis bolts.