Metric Hex Jam Nylon Lock Nut Dimensions Chart according to ISO 10511 standard.
Some important notes from the ISO standards:
- ISO 10511 specifies the characteristics of prevailing torque type hexagon thin nuts (with
non-metallic insert) with thread from M3 up to and including M36, with product grade A for threads d ≤ M16 and product grade B for threads d > M16.
- Mechanical properties of ISO 10511 hex jam lock nuts: Steel - Property class 04
Note 1: Dimensions are in mm.
Note 2: Requirements for electroplating are covered in ISO 4042 for steel nuts
Note 3: Non-preferred threads according to ISO standards: M14.
Note 4: Non-metallic insert material: Non - metallic (Ex. polyamide).
Note 5: Nut body material : steel.
Note 6: Thread Tolerance : 6H.
Note 7: m: Minimum thread height.
Note 8: mw: Minimum wrenching height.
Product Grade A, Grade B and Grade C: The product grades refer to the size of the tolerances where grade A is the most precise and grade C is the least
precise as defined in the ISO 4759-1:2000 standard.