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Nuts · GB/T 6181 / ISO 4035

M14 Thin Hex Castle Nut Dimensions & Specifications

M14 Thin Hex Castle Nut Dimensions & Specifications reference image

M14 Thin Hex Castle Nut (GB/T 6181 / ISO 4035) are specified by thread size, length and head dimensions. The M14 row from the standard is reproduced below, followed by the drill sizes, spanner size and torque values used when installing this size.

M14 Dimensional Row (GB/T 6181 / ISO 4035)

SizePitch (mm)Width across flats s (mm)Width across corners e (mm)Total height m (mm)Slot width (mm)Reference standard
M142.021.023.3617.84.0ISO 7036 / GB/T 6180

Spanner & Drive for M14 Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053)

Drive geometry for M14 Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053) is given by the row above; match the tool to the listed values.

Common Applications for M14 Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053)

M14 Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053) 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.

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.

Request a Quote

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 (GB/T 6181 / ISO 4035)

SizePitch (mm)Width across flats s (mm)Width across corners e (mm)Total height m (mm)Slot width (mm)Reference standard
M30.55.56.014.01.2ISO 7036 / GB/T 6180
M40.77.07.665.01.5ISO 7036 / GB/T 6180
M50.88.08.796.71.8ISO 7036 / GB/T 6180
M61.010.011.057.72.0ISO 7036 / GB/T 6180
M81.2513.014.389.82.5ISO 7036 / GB/T 6180
M101.516.017.7712.42.8ISO 7036 / GB/T 6180
M121.7518.020.0315.83.5ISO 7036 / GB/T 6180
M142.021.023.3617.84.0ISO 7036 / GB/T 6180
M162.024.026.7520.84.5ISO 7036 / GB/T 6180
M182.527.030.1422.54.5ISO 7036 / GB/T 6180
M202.530.033.5324.05.5ISO 7036 / GB/T 6180
M243.036.039.9829.56.0ISO 7036 / GB/T 6180
M303.546.050.8536.07.0ISO 7036 / GB/T 6180
M364.055.060.7943.08.0ISO 7036 / GB/T 6180

Frequently Asked Questions

What is the coarse-thread pitch of M14 for Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053)?

For M14 the standard coarse pitch is 2 mm — this is the value used for Thin Hex Castle Nut — GB/T 6181 / ISO 4035 (Series 053).

What clearance and tapping drill suit M14?

Use a 15.5 mm clearance hole (ISO 273 medium) for through-fixing, or a 12 mm tapping drill for a coarse M14 thread.

What is the height of an M14 nut?

The nominal height of a style-1 ISO 4032 M14 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×.

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.