The 1590MS100 is a 100-pack of #6-32 x 1/2" replacement screws for Hammond's imperial 1590 series die-cast enclosures. It is sized for production lines, OEM engineers and service departments that assemble or maintain 1590 and 1590K4 enclosures in volume, where a 100-count supply keeps the bench stocked.

The short description identifies the part as a "1590 PLATED DIECAST SCREW", and the material is listed as steel. In the series hardware list these are assembly screws, the fasteners that hold the enclosure together, and the plated finish is part of the manufacturer's own description.

The part page lists an IP54 rating for this item. Each pack contains 100 screws supplied in a bag, with a shipping weight of 0.19 lbs (0.09 kg). The 1590MS100 is RoHS compliant and REACH compliant.

For builds that call for black hardware, the hardware list also includes a black 50-pack of #6-32 x 1/2" screws for the same series. In most cases enclosures include all hardware needed for assembly; this pack covers replacements and spares. Hardware packs may not be compatible with all parts in the listed series, so check the enclosure's replacement parts and accessories list to confirm fit.