The 1599HMS100 is a 100-pack of M3-0.5 x 12mm assembly screws for Hammond 1599 and 1599T series enclosures. It is a replacement and stocking item for technicians and assemblers who close these enclosures with metric screws.

The manufacturer's short description reads "M3X.5X12MM SCREWS". The series hardware list classifies the part as assembly screws, describes it as M3-0.5 x 12mm screws, and names the 1599T and 1599 series as applicable.

Each pack contains 100 screws and has a shipping weight of 0.11 lbs (0.05 kg). The 1599HMS100 is RoHS compliant and REACH compliant, which supports builds that must meet those material-restriction requirements.

A black version of the M3-0.5 x 12mm screw is also listed for the same two series. In most cases, enclosures include all hardware needed for assembly, so this pack is intended for replacing lost or worn screws and for keeping spares on the bench. Hardware packs may not be compatible with all parts in the listed series; the 1599 series also appears against other screw packs in the hardware list, so check the enclosure's replacement parts and accessories list to confirm the M3-0.5 x 12mm screw is correct.