M5, M4 and M3 nut and washer adaptors for 2020 extrusions.

thingiverse

This is a custom nut and washer holder designed specifically for 2020 extrusions, particularly those from Brazil that feature an 8mm groove incompatible with standard T-Nuts from China. The mechanical stress is maintained by the washer, while the printed component functions solely as a nut holder, allowing you to tighten it with ease. M5 versions require a DIN-439 (thinner) nut to fit snugly inside the extrusion. All versions utilize M5 washers. The M3 version also incorporates an additional M3 washer to ensure a secure interface with the M5 washer. Updates: Modified the M4 version to employ a M5 washer for enhanced grip. Introduced the M3 version.