24 standards145 specification pages
M3 Fasteners
All M3 screws, bolts, nuts and washers in the database. M3 has a nominal major diameter of 3 mm with a standard coarse pitch of 0.5 mm, across 24 standards.
Nominal Ø3 mm
Coarse pitch0.5 mm
Pitch Ø2.68 mm
Tap drill2.5 mm
M3 thread dimensions
Full thread page- Designation
- M3 × 0.5
- Major diameter
- 3 mm
- Pitch
- 0.5 mm
- Pitch diameter
- 2.68 mm
- Minor diameter — external
- 2.39 mm
- Minor diameter — internal
- 2.46 mm
- Tap drill size
- Ø 2.5 mm
M3 Screws
138 pagesISO 10642Hexagon Socket Countersunk Head Screw
DIN 7984Hexagon Socket Head Cap Screw with Low Head
ISO 1207Slotted Cheese Head Screw — Product Grade A
ISO 1580Slotted Pan Head Screw — Product Grade A