Self-Clinching Nuts
Self-Clinching & Weld Fasteners

Self-Clinching Nuts

Standard clinch nuts in steel, stainless, hardened stainless and aluminium.

Section
Self-clinching
Type
Nuts
Request a quote All self-clinching

Overview

Self-clinching nuts press into a punched or drilled hole. The sheet flows into the undercut and the knurl stops rotation, giving strong, permanent, reusable threads in thin sheet with a flush reverse side.

Full dimensions, preferred lengths and installation / push-out / torque-out performance data are in the tables below, taken from the self-clinching fasteners catalogue.

Specifications

Part numbersSG-S, SG-CLS, SG-SP4, SG-SP2, SG-CLA, SG-H
Zinc Plated SteelSG-S
Stainless SteelSG-CLS
400 Series Stainless SteelSG-SP4
A286 Stainless SteelSG-SP2
SizesM2, M2.5, M3, M3.5, M4, M5, M6, M8, M10, M12
Sheet hardness (SG-S)HRB 80 or less
Sheet hardness (SG-CLS)HRB 70 or less
Sheet hardness (SG-SP4/SP2)HRB 90 or less

Dimensions & performance data

All dimensions in mm unless stated. Values from the self-clinching fasteners catalogue. Install into sheet within the hardness limits shown in the specifications.

Dimensions: SG-S / SG-CLS / SG-SP4 / SG-SP2 (mm)

ThreadM2, M2.5, M3M3 altM3.5M4
Shank code0120120120123
D max.4.204.734.735.38
B ±0.26.357.17.17.95
H ±0.251.51.51.52.0
h max.0.770.971.380.770.971.380.770.971.380.770.971.382.21
Min. sheet thickness0.81.01.40.81.01.40.81.01.40.81.01.42.3
Recommended hole size +0.084.224.754.755.41
Min. distance to edge of sheet4.85.65.66.9

Dimensions: SG-S / SG-CLS / SG-SP4 / SG-SP2, M5 to M12 (mm)

ThreadM5M6M8M10M12
Shank code0123000123123121
D max.6.338.7310.4713.9716.95
B ±0.28.7511.1012.6517.3520.55
H ±0.252.04.085.477.488.5
h max.0.770.971.382.210.891.151.382.213.051.382.213.052.213.053.05
Min. sheet thickness0.81.01.42.30.921.21.42.33.21.42.33.22.313.183.18
Recommended hole size +0.086.358.7510.514.017.0
Min. distance to edge of sheet7.18.69.713.516.0

Dimensions: SG-H non-locking nuts, zinc plated steel (mm)

ThreadTypeh max.Min. sheet thicknessRec. hole size +0.13D max.B ±0.25H ±0.13Min. distance to edge of sheet
M10H1.481.4812.712.6716.57.912

Dimensions: SG-CLA (mm)

ThreadM2M3M3.5M4M5M6
Shank code121212121212
D max.4.224.735.385.977.478.72
B ±0.26.36.37.17.99.511.05
H ±0.251.52.02.03.03.84.08
h max.0.981.380.981.380.981.380.981.380.981.381.382.21
Min. sheet thickness1.01.41.01.41.01.41.01.41.01.41.42.3
Recommended hole size +0.084.254.755.46.07.58.75
Min. distance to edge of sheet4.85.66.97.17.98.6

Performance data: SG-S / SG-CLS (test material: steel)

ThreadM2, M2.5M3M3 altM3.5M4
Shank code01201230120120123
Installation (kN)11.2 - 15.611.2 - 15.613.4 - 26.713.4 - 26.718 - 27
Torsional resistance (Nm)1.51.752.01.51.752.02.11.82.42.41.82.42.43.04.05.04.2
Pushout (N)4805601020480560102011104855751200485575120049565012551300

Performance data: SG-S / SG-CLS, M5 to M12 (test material: steel)

ThreadM5M6M8M10M12
Shank code0123123123121
Installation (kN)18 - 3827 - 3627 - 3632 - 5033 - 49
Torsional resistance (Nm)3.74.56.96.017.117.116.418.820.418.136.136.173.9
Pushout (N)53580111151500176517651755187018701860202120213065

Performance data: SG-SP4 / SG-SP2 (test material: stainless steel)

ThreadM2, M2.5M3M4M5M6M8
Shank code0120120120121212
Installation (kN)35404535404540444642465160666672
Torsional resistance (Nm)---1.62.02.33.44.25.14.05.16.717.019.019.021.8
Pushout (N)580720129058072012906508001590805103017802005230021002415

Key features

  • Steel, stainless, 400-series, A286 and aluminium
  • For stainless sheet up to HRB 90 (SP4/SP2)
  • Non-locking SG-H also available

Applications

Electrical enclosuresServer racksElectronics chassisAppliances
Need a size, grade or finish not listed?We also supply special and non-standard parts to drawing.Send enquiry

More self-clinching

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Clinch nuts that finish flush on both sides of the sheet.

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Closed-end clinch nuts that seal and protect the thread.