DIN 84Cheese headSlotted
DIN 84 M5 × 20 Cheese head
DIN 84 M5 × 20 is a cheese head screw with a 20 mm nominal length, on a M5 × 0.8 mm metric thread. A cylindrical head with a straight slot drive. Still common in instrument and electrical work, though pozidriv and hexalobular drives have largely replaced it in volume assembly.
Diameter5 mm
Length20 mm
Pitch0.8 mm
Head Ø dk8.5 mm
Head height k3 mm
HeadCheese head
DriveSlotted
Dimensions
- Standard
- DIN 84
- Type
- Cheese head screw
- Size
- M5 × 20
- Thread
- M5 × 0.8
- Length L
- 20 mm
- Head diameter dk
- 8.5 mm
- Head height k
- 3 mm
- Drive
- Slotted
- Head
- Cheese head
Nominal values in millimetres as published in DIN 84. Estimated weight 4.419 g per piece in steel (4.447 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M5 thread pageDesignationM5 × 0.8
Pitch0.8 mm
Major Ø5 mm
Pitch Ø4.48 mm
Minor Ø ext4.02 mm
Tap drillØ 4.2 mm
Other lengthsDIN 84 M5
All M5 specificationsInterchangeability
DIN 84 is catalogued with ISO 1207 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.