ISO 7380Button head (low dome)Hexagon socket
ISO 7380 M16 × 25 Button head (low dome)
ISO 7380 M16 × 25 is a button head socket screw with a 25 mm nominal length, on a M16 × 1.5 mm metric thread. A low dome head with internal hex drive. Chosen when you want a finished look without machining a countersink.
Diameter16 mm
Length25 mm
Pitch1.5 mm
Socket size s10 mm
Head Ø dk28 mm
HeadButton head (low dome)
DriveHexagon socket
Dimensions
- Standard
- ISO 7380
- Type
- Button head socket screw
- Size
- M16 × 25
- Thread
- M16 × 1.5
- Length L
- 25 mm
- Socket size s
- 10 mm
- Head diameter dk
- 28 mm
- Head height k
- 8.8 mm
- Drive
- Hexagon socket
- Head
- Button head (low dome)
Nominal values in millimetres as published in ISO 7380. Estimated weight 81.995 g per piece in steel (82.517 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M16 thread pageDesignationM16 × 1.5 fine
Pitch1.5 mm
Major Ø16 mm
Pitch Ø15.03 mm
Minor Ø ext14.16 mm
Tap drillØ 14.5 mm