DIN 85 M2 × 12 Pan head
DIN 85 M2 × 12 is a pan head screw with a 12 mm nominal length, on a M2 × 0.4 mm metric thread. A slightly domed head with straight slot drive. Larger bearing face than a cheese head, useful on thin sheet.
Dimensions
- Standard
- DIN 85
- Type
- Pan head screw
- Size
- M2 × 12
- Thread
- M2 × 0.4
- Length L
- 12 mm
- Head diameter dk
- 4 mm
- Head height k
- 1.3 mm
- Drive
- Slotted
- Head
- Pan head
Nominal values in millimetres as published in DIN 85. Estimated weight 0.424 g per piece in steel (0.427 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M2 thread pageOther lengthsDIN 85 M2
All M2 specificationsInterchangeability
DIN 85 is catalogued with ISO 1580 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.
Choosing and fitting this size
DIN 85 M2 × 12 is a pan head in M2, 12 mm long under the head, on a 0.4 mm coarse pitch. Mating threads should be a matching class nut or a tapped hole of the same nominal size.
Common stock grades are 8.8, 10.9 and 12.9 in steel, plus A2-70 and A4-80 in stainless. Class 10.9 and 12.9 carry roughly 1.25 and 1.5 times the proof load of 8.8, but they also need a properly rated mating nut — a class 8 nut under a 12.9 bolt simply moves the failure into the thread. Zinc-plated 10.9 and above should be baked to avoid hydrogen embrittlement.
For a tapped hole, M2 × 0.4 mm takes a 1.6 mm tap drill, and the external thread's minor diameter is 1.51 mm — that is the section carrying the load, not the nominal M2 figure. Thread engagement of at least one times the nominal diameter is what lets the bolt fail before the thread strips.