The M16 size of Castellated Hex Nut is dimensioned by GB/T 6180 / ISO 7036. The tables below give the dimensional row from the standard, the drill and spanner sizes that go with it, and the assembly torque per property class. The technical drawing on this page redraws to the exact values selected.
M16 Dimensional Row (GB/T 6180 / ISO 7036)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e (mm) | Total height m (mm) | Slot width (mm) | Reference standard |
|---|---|---|---|---|---|---|
| M16 | 2.0 | 24.0 | 26.75 | 20.8 | 4.5 | ISO 7036 / GB/T 6180 |
Spanner & Drive for M16 Castellated Hex Nut — GB/T 6180 / ISO 7036 (Series 048)
Drive geometry for M16 Castellated Hex Nut — GB/T 6180 / ISO 7036 (Series 048) is given by the row above; match the tool to the listed values.
Common Applications for M16 Castellated Hex Nut — GB/T 6180 / ISO 7036 (Series 048)
M16 Castellated Hex Nut — GB/T 6180 / ISO 7036 (Series 048) are commonly specified for medium-duty structural joints and motor / chassis mounting.
Mating Parts for M16
Pair M16 with the matching M16 bolt or screw, plus a M16 flat washer where required to distribute load on softer materials.
When to Step Up or Down from M16
When the joint preload approaches the proof load of M16 class 8.8, step up to M20 class 8.8 (or move to M16 class 10.9). When the joint is over-specified, M12 often saves weight and cost without losing the safety margin.