Socket head cap screws, M2–M8 (ISO 4762 / DIN 912) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/socket-head-cap-screws-metric/  (CC BY 4.0)
Basis: ISO 4762 / DIN 912; clearance per ISO 273 medium
Catalog version: 2026-10-20

Sizes: see table below
- Head diameter ≈ 1.5 × thread, head height = thread diameter. Counterbore the head diameter + 0.5 mm, depth = head height + 0.5 mm.
- Clearance (medium): M2 2.4, M2.5 2.9, M3 3.4, M4 4.5, M5 5.5, M6 6.6, M8 9.0 mm. Printed holes: add ~0.2–0.3 mm.
- Tap drill: M2 1.6, M2.5 2.05, M3 2.5, M4 3.3, M5 4.2, M6 5.0, M8 6.8 mm.

thread  pitch_mm  head_dia_mm  head_height_mm  hex_key_mm  clearance_mm  tap_drill_mm
M2  0.4  3.8  2  1.5  2.4  1.6
M2.5  0.45  4.5  2.5  2  2.9  2.05
M3  0.5  5.5  3  2.5  3.4  2.5
M4  0.7  7  4  3  4.5  3.3
M5  0.8  8.5  5  4  5.5  4.2
M6  1.0  10  6  5  6.6  5.0
M8  1.25  13  8  6  9.0  6.8

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- McMaster-Carr: Socket head screws (free STEP/IGES/STL per part, for your own design use; no redistribution) — STEP, IGES, STL, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/screws/socket-head-screws/
- Wikipedia: List of screw drives / ISO metric screw thread — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/ISO_metric_screw_thread

Free files (CC BY 4.0, Xem Studio; STEP + STL, 47 parts): https://xemstudio.com/files/hardware/socket-head-cap-screws-metric/index.json
API: https://xemstudio.com/api/geometry?object=socket-head-cap-screws-metric