M14 is one of the standard coarse-thread sizes for all-metal prevailing torque hex lock nut (type 1) under GB/T 6184 / ISO 7042. The sections below reproduce the dimensional row, list the matching tools and hole sizes, and summarize where this size is normally specified.
M14 Dimensional Row (GB/T 6184 / ISO 7042)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e (mm) | Total height m (mm) | Reference standard |
|---|---|---|---|---|---|
| M14 | 2.0 | 21.0 | 23.36 | 14.0 | ISO 7040 / DIN 985 |
Spanner & Drive for M14 All-Metal Prevailing Torque Hex Lock Nut (Type 1) — GB/T 6184 / ISO 7042 (Series 047)
Drive geometry for M14 All-Metal Prevailing Torque Hex Lock Nut (Type 1) — GB/T 6184 / ISO 7042 (Series 047) is given by the row above; match the tool to the listed values.
Common Applications for M14 All-Metal Prevailing Torque Hex Lock Nut (Type 1) — GB/T 6184 / ISO 7042 (Series 047)
M14 All-Metal Prevailing Torque Hex Lock Nut (Type 1) — GB/T 6184 / ISO 7042 (Series 047) are commonly specified for medium-duty structural joints and motor / chassis mounting.
Mating Parts for M14
Pair M14 with the matching M14 bolt or screw, plus a M14 flat washer where required to distribute load on softer materials.