Xem Studiomeasured geometryLibrary › Hardware › Set screws (grub screws), M3–M8
ISO 4026 M3 × 10 flat point, 1.5 mm key
ISO 4026 M3 × 10 flat point, 1.5 mm key
Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, CC BY 4.0 (credit "Xem Studio")
Dimensions
| thread | M3 |
|---|---|
| hex_key_mm | 1.5 |
| common_lengths_mm | 3, 4, 5, 6, 8, 10 |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.From the full sheet
Set screws (grub screws), M3–M8 (ISO 4026): every size, notes, mating features and sources. What size set screw holds a 5 mm shaft coupler or pulley?
Other sizes
- ISO 4026 M3 × 3 flat point, 1.5 mm key
- ISO 4026 M3 × 4 flat point, 1.5 mm key
- ISO 4026 M3 × 5 flat point, 1.5 mm key
- ISO 4026 M3 × 6 flat point, 1.5 mm key
- ISO 4026 M3 × 8 flat point, 1.5 mm key
- ISO 4026 M4 × 4 flat point, 2.0 mm key
- ISO 4026 M4 × 5 flat point, 2.0 mm key
- ISO 4026 M4 × 6 flat point, 2.0 mm key
- ISO 4026 M4 × 8 flat point, 2.0 mm key
- ISO 4026 M4 × 10 flat point, 2.0 mm key
- ISO 4026 M4 × 12 flat point, 2.0 mm key
- ISO 4026 M5 × 5 flat point, 2.5 mm key
- ISO 4026 M5 × 6 flat point, 2.5 mm key
- ISO 4026 M5 × 8 flat point, 2.5 mm key
- ISO 4026 M5 × 10 flat point, 2.5 mm key
- ISO 4026 M5 × 12 flat point, 2.5 mm key
- ISO 4026 M6 × 6 flat point, 3.0 mm key
- ISO 4026 M6 × 8 flat point, 3.0 mm key
- ISO 4026 M6 × 10 flat point, 3.0 mm key
- ISO 4026 M6 × 12 flat point, 3.0 mm key
- ISO 4026 M6 × 16 flat point, 3.0 mm key
- ISO 4026 M8 × 8 flat point, 4.0 mm key
- ISO 4026 M8 × 10 flat point, 4.0 mm key
- ISO 4026 M8 × 12 flat point, 4.0 mm key
- ISO 4026 M8 × 16 flat point, 4.0 mm key
- ISO 4026 M8 × 20 flat point, 4.0 mm key