cMany (most?) of these design conventions come from study of the Voron Design Team's work. substitute ## Metric Screws | Fastener Type \ Dimension | socketCapHoleDiameter | socketCapHoleDepth | screwShankHoleDiameter | flatHeadChamfer | | ------------------------- | --------------------- | ------------------ | ---------------------- | --------------- | | M3 SHCS | ==5.7 mm== | ==3.1 mm== | 3.305 | | | M3 FHCS | | | 3.305 | 1.7 mm | | M3 BHCS | | | 3.305 | | | M4 FHCS | | | 4.305 | 2.45 mm | | M5 SHCS | | | 5.305 | | ## Threaded Heat Inserts [[Heat Set Threaded Inserts]] | Insert Type \ Dimension | recessedHoleChamfer | heatInsertHoleDiameter | heatInsertMinDepth | | ----------------------- | ------------------- | ---------------------- | ------------------ | | M3x5x4 (Voron) | 0.4 mm | 4.6 mm | 4.5 mm | | M4 x 4.0 Short | 0.4 mm | 5.9 mm | 4.5 mm | ![[SCR-20250814-nwkg.png]]