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Mechanical Design Standard

REV: 2020-09-05

Official Guidebolt Mechanical-Design Standard

Material Composition

Required: all materials, generally non-toxic

Required: all materials, lead-free

Preferred: all materials, halogen-free


Screws, metric.

Screw threads:

  • M2
  • M2.5
  • M3
  • M4
  • M5
  • M6
  • M8
  • M12

Screw head, socket-head hex-drive.

Screw material:

  • A2 stainless steel (SAE 304)
  • A4 stainless steel (SAE 316)

All edges and corners are rounded or chamfered.


Preferred: easy-to-clean, see process list below.

  • tool-free wipe
  • tool-free scrub
  • tool-required scrub
  • cold-water rinse
  • hot-water rinse