ISO 1580Pan headSlotted
ISO 1580 M3 × 20 Pan head
ISO 1580 M3 × 20 is a pan head screw with a 20 mm nominal length, on a M3 × 0.5 mm metric thread. ISO equivalent of DIN 85.
Diameter3 mm
Length20 mm
Pitch0.5 mm
Head Ø dk5.6 mm
Head height k1.8 mm
HeadPan head
DriveSlotted
Dimensions
- Standard
- ISO 1580
- Type
- Pan head screw
- Size
- M3 × 20
- Thread
- M3 × 0.5
- Length L
- 20 mm
- Head diameter dk
- 5.6 mm
- Head height k
- 1.8 mm
- Drive
- Slotted
- Head
- Pan head
Nominal values in millimetres as published in ISO 1580. Estimated weight 1.458 g per piece in steel (1.467 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M3 thread pageDesignationM3 × 0.5
Pitch0.5 mm
Major Ø3 mm
Pitch Ø2.68 mm
Minor Ø ext2.39 mm
Tap drillØ 2.5 mm
Other lengthsISO 1580 M3
All M3 specificationsInterchangeability
ISO 1580 is catalogued with DIN 85 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.