M30 Nylon Insert Hex Lock Nut (Type 2) (GB/T 6182 / ISO 10513) are specified by thread size, length and head dimensions. The M30 row from the standard is reproduced below, followed by the drill sizes, spanner size and torque values used when installing this size.
M30 Dimensional Row (GB/T 6182 / ISO 10513)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e (mm) | Total height m (mm) | Reference standard |
|---|---|---|---|---|---|
| M30 | 3.5 | 46.0 | 50.85 | 25.0 | ISO 7040 / DIN 985 |
Spanner & Drive for M30 Nylon Insert Hex Lock Nut (Type 2) — GB/T 6182 / ISO 10513 (Series 051)
Drive geometry for M30 Nylon Insert Hex Lock Nut (Type 2) — GB/T 6182 / ISO 10513 (Series 051) is given by the row above; match the tool to the listed values.
Common Applications for M30 Nylon Insert Hex Lock Nut (Type 2) — GB/T 6182 / ISO 10513 (Series 051)
M30 Nylon Insert Hex Lock Nut (Type 2) — GB/T 6182 / ISO 10513 (Series 051) are commonly specified for structural joints, flange connections and heavy equipment foundations.
Installation Tips for M30 Nylon Insert Hex Lock Nut (Type 2) — GB/T 6182 / ISO 10513 (Series 051)
- At M30 the stretch in the bolt becomes the controlling factor — for critical joints, use angle-controlled or stretch-controlled tightening instead of pure torque.
Mating Parts for M30
Pair M30 with the matching M30 bolt or screw, plus a M30 flat washer where required to distribute load on softer materials.