The SCGM6GRP-20 is a 20-pack of M6 copper screws with washer, described by Hammond as replacement M6 ground screws for the 1590ZGRP series. It is intended for electricians, integrators and equipment builders who work with 1590ZGRP and 1590ZGRPBK enclosures and need the matching grounding hardware.

In the Small Case Hardware ordering table, the SCGM6GRP-20 appears as Panel Screws with the description "M6 x 6mm copper screws and washer" and applicable series 1590ZGRP and 1590ZGRPBK. The part page short description is "1590ZGRP M6 GRND SCREW 20 PACK", and the long description calls it "replacement M6 ground screws for 1590ZGRP series". Material is copper; the item is catalogued as Hardware, type Screws.

The pack contains 20 pieces in a plastic clamshell, with a listed shipping weight of 0.24 lbs (0.11 kg).

Note the difference from the SCGM6-20, which Hammond lists as M6 x 10mm screws for the 1590Z series; the SCGM6GRP-20 uses an M6 x 6mm screw for the GRP models. Hammond enclosures generally include all hardware needed for assembly, and hardware packs may not be compatible with every part in a listed series, so confirm fit on the series landing page or the "Replacement Parts and Accessories" section of the enclosure's part page.

The SCGM6GRP-20 is RoHS compliant and REACH compliant.