These nuts and bolts hold the wheels on.

这些螺母和螺栓把轮子固定住了。

《牛津词典》

The elbow shall be bolted to the floor of the wet-well and be so designed as to receive the pump connecting flange without the need for any bolts, nuts or clamps.

弯头应该用螺栓固定在湿井地面，并且设计成具有不需要任何螺栓、螺母或皮带即可连接泵设备的连接法兰的能力。

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We specialize in wholesale supply of screws, bolts, nuts, pins, studs and things of similar kinds.

我们专管批发生意，供应螺钉、螺栓、螺栓帽、别针、饰针等诸如此类的东西。

youdao

In government,industry, diplomacy -- in most anything those who understand the nuts and bolts are the most important.

VOA: special.2009.11.01

The top leaders are always well-known, but not those who work with the nuts and bolts.

VOA: special.2009.11.01

The Payments Council - the trade body which looks after the nuts and bolts of UK payments systems - is working on a database of UK mobile numbers linked to bank accounts.

BBC: Mobile money - has its moment come?

Known for his fiscal conservatism, Livingston stressed his nuts-and-bolts legislative experience when he announced his candidacy.

CNN: Republicans vie for speaker's job

While it has done little to address the nuts-and-bolts complaints of small businesses, Jakarta has not been entirely unresponsive.

CNN: Big Little Problems