The SC583-50 is a 50-pack of M4 x 25mm stainless steel pan head screws. The manufacturer's long description calls it "replacement screws for 1554 series", and the Small Case Hardware list extends its applicable series to 1590ZGRP, 1590ZGRPBK, 1554 and 1555. Contractors and maintenance teams responsible for these enclosures use it to replace lost or damaged lid screws.

The screws have a metric M4 thread, a 25mm length and a pan head, with stainless steel specified as the material. At 25mm they are 5mm longer than the M4 x 20mm screws listed for several of the same families, so check which length your enclosure calls for.

The pack holds 50 screws in a plastic clamshell measuring 2.5 in x 1.5 in x 0.75 in (64 mm x 38 mm x 19 mm), with a shipping weight of 0.29 lbs (0.13 kg). It is categorised as hardware, type screws, and is RoHS compliant and REACH compliant.

Enclosures in most cases include all hardware needed for assembly, so the SC583-50 is intended for replacement. Hardware packs may not be compatible with every part in a listed series, so check the series landing page or the "Replacement Parts and Accessories" section on your enclosure's part page before ordering.