Jobsite Storage Jobsite Storage Jobsite storage requirements will vary by project.
Many specifications require production lot traceability.
In these cases, the production lot numbers of each set of bolts, nut and washers should be recorded and the fasteners kept separate by lot. Mixing of bolts and nuts, even of the same diameter, grade and length, is not be permitted. Only certain pretested combinations of bolt lot, nut lot and washer lot, as established by the supplier or by jobsite testing, are permitted to be installed. Even when project specifications do not specifically require lot traceability, the practice of keeping bolt and nut lots separate and controlled is recommended. It is not necessary to record where the specific lots are installed on the structure.