ISO 10511Nylon insert lock nutExternal hexagon
ISO 10511 M3 Nylon insert lock nut
ISO 10511 M3 is a nylon insert lock nut, on a M3 × 0.5 mm metric thread. ISO equivalent of DIN 985. Reuse is limited — the prevailing torque drops each time the insert is run over the thread.
Diameter3 mm
Pitch0.5 mm
Socket size s5.5 mm
Thickness h4.5 mm
Height m4 mm
DriveExternal hexagon
Dimensions
- Standard
- ISO 10511
- Type
- Nylon insert lock nut
- Size
- M3
- Thread
- M3 × 0.5
- Socket size s
- 5.5 mm
- Height m
- 4 mm
- Total height h
- 4.5 mm
- Drive
- External hexagon
Nominal values in millimetres as published in ISO 10511. Estimated weight 0.395 g per piece in steel (0.397 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 10511 M3
All M3 specificationsInterchangeability
ISO 10511 is catalogued with DIN 985 as its equivalent designation. Dimensions are compared field by field rather than assumed identical.