Applicable to mass produced stamped metal articles using fully automatic punch presses exclusively.

Code 3129 applies to employers engaged in manufacturing stamped metal products such as buttons, buckles, bottle caps or crowns, nameplates, picture hangers, wall brackets, nail heads, washers, gaskets, shims and advertising badges, as well as other components produced on a job basis, including electronic contacts, terminals and jewelry findings.  These products are manufactured from coil or strip metal stock by means of fully automatic type punch presses.

While basic operations of employers assigned to this classification consist of the automatic stamping of the coil or strip metal stock, the subsequent cleaning, deburring and finishing by heat treating, painting and electroplating are also inclusive under this classification.