Bulk goods? – yes, numerous small parts in industrial manufacturing are produced and processed in such large quantities that we speak of them as bulk goods. Metallic fasteners like screws, bolts, and rivets fall into this category.
PVD-coated bolts and nuts
Fraunhofer FEPElectrical resistance after aging in heat treatment facility at 80°C
Fraunhofer FEP
Their use frequently remains unseen, and yet they play an enormous role in the manufacturing of industrial goods.(…)
via Process Engineering.