holding down bolt meaning in Hindi

Examples

1. A number of concrete plinths and associated holding down bolts indicate an element of some size was once secured to the floor.
2. The engine foundations, consisting of a concrete slab with its holding down bolts, is all that survives of the boiler house and engines.
3. In 1873, this cross-bolt mechanism was combined with the bottom holding down bolts to produce the " Treble Wedge-Fast " breech action.