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Nuts · DIN 985 / ISO 7040

M30 Nyloc Lock Nuts Dimensions & Specifications

M30 Nyloc Lock Nuts Dimensions & Specifications reference image

This page covers M30 Nyloc Lock Nuts to DIN 985 / ISO 7040: the full dimensional row, hole and tool sizes, proof-load data and typical applications. All values are taken from the governing standards (DIN 985 / ISO 7040 together with ISO 273, ISO 724 and ISO 898-1 where applicable).

M30 Dimensional Row (DIN 985 / ISO 7040)

SizePitch (mm)Width across flats s (mm)Width across corners e min (mm)Total height m (mm)Metal height (mm)Reference standardNotes
M303.546.050.8525.024.0DIN 985 / ISO 7040With nylon insert, single use

Spanner & Drive for M30 Nyloc Lock Nuts

Drive geometry for M30 Nyloc Lock Nuts is given by the row above; match the tool to the listed values.

Common Applications for M30 Nyloc Lock Nuts

M30 Nyloc Lock Nuts are commonly specified for structural joints, flange connections and heavy equipment foundations.

Installation Tips for M30 Nyloc Lock Nuts

  • 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.

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

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Adjust the parameters in the drawing above and click "Request this configuration" to send the exact specification straight to this form.

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Specification
Business Information

Dimensions & Specifications (DIN 985 / ISO 7040)

SizePitch (mm)Width across flats s (mm)Width across corners e min (mm)Total height m (mm)Metal height (mm)Reference standardNotes
M30.55.56.014.02.4DIN 985 / ISO 7040With nylon insert, single use
M40.77.07.665.03.2DIN 985 / ISO 7040With nylon insert, single use
M50.88.08.795.03.7DIN 985 / ISO 7040With nylon insert, single use
M61.010.011.056.04.7DIN 985 / ISO 7040With nylon insert, single use
M81.2513.014.388.06.14DIN 985 / ISO 7040With nylon insert, single use
M101.516.017.7710.08.04DIN 985 / ISO 7040With nylon insert, single use
M121.7518.020.0312.09.64DIN 985 / ISO 7040With nylon insert, single use
M142.021.023.3614.011.0DIN 985 / ISO 7040With nylon insert, single use
M162.024.026.7516.013.0DIN 985 / ISO 7040With nylon insert, single use
M202.530.032.9520.016.0DIN 985 / ISO 7040With nylon insert, single use
M243.036.039.5522.019.0DIN 985 / ISO 7040With nylon insert, single use
M303.546.050.8525.024.0DIN 985 / ISO 7040With nylon insert, single use
M364.055.060.7929.029.0DIN 985 / ISO 7040With nylon insert, single use

Frequently Asked Questions

What is the height of an M30 nut?

The nominal height of a style-1 ISO 4032 M30 nut is in the spec table on this page. Style-2 (thick) is approximately 1.1× this height; thin (ISO 4035 / DIN 439) is approximately 0.5×.

What is the coarse-thread pitch of M30 for Nyloc Lock Nuts?

For M30 the standard coarse pitch is 3.5 mm — this is the value used for Nyloc Lock Nuts.

What clearance and tapping drill suit M30?

Use a 33 mm clearance hole (ISO 273 medium) for through-fixing, or a 26.5 mm tapping drill for a coarse M30 thread.

Should M30 Nyloc Lock Nuts be tightened by torque or by angle?

For critical structural joints at M30, angle-controlled or stretch-controlled tightening is more repeatable than pure torque — the friction scatter at large diameters can dominate the torque signal.

How do I request a quotation?

Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.