ISO 10511Nylon insert lock nutExternal hexagon
ISO 10511 M18 Nylon insert lock nut
ISO 10511 M18 is a nylon insert lock nut, on a M18 × 1.5 mm metric thread. ISO equivalent of DIN 985. Reuse is limited — the prevailing torque drops each time the insert is run over the thread.
Diameter18 mm
Pitch1.5 mm
Socket size s27 mm
Thickness h23 mm
Height m21 mm
DriveExternal hexagon
Dimensions
- Standard
- ISO 10511
- Type
- Nylon insert lock nut
- Size
- M18
- Thread
- M18 × 1.5
- Socket size s
- 27 mm
- Height m
- 21 mm
- Total height h
- 23 mm
- Drive
- External hexagon
Nominal values in millimetres as published in ISO 10511. Estimated weight 36.105 g per piece in steel (36.335 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M18 thread pageDesignationM18 × 1.5 fine
Pitch1.5 mm
Major Ø18 mm
Pitch Ø17.03 mm
Minor Ø ext16.16 mm
Tap drillØ 16.5 mm
Other lengthsISO 10511 M18
All M18 specificationsInterchangeability
ISO 10511 is catalogued with DIN 985 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.