Screw Lock Threaded Standoffs
Self-Clinching & Weld Fasteners

Screw Lock Threaded Standoffs

Standoffs with a locking thread that resists screw loosening.

Section
Self-clinching
Type
Standoffs
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Overview

Screw lock standoffs have a locking thread feature that grips the screw and stops it vibrating loose, with no extra lock washer or adhesive.

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-DSO, SG-DSOS
Zinc Plated SteelSG-DSO
Stainless SteelSG-DSOS
SizesM3
Sheet hardness (SG-DSO)HRB 80 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 (mm)

ThreadM3
Length L +0.05/-0.136.357.0
C max.4.2
D nom.4.92
Sheet thickness0.94 - 6.35
Recommended hole size +0.084.2
Min. distance to edge of sheet3.2

Performance data: SG-DSO / SG-DSOS

ThreadM3
Sheet thickness (mm) – steel1.0
Sheet thickness (mm) – aluminium1.0
Installation (kN) – steel5.85
Installation (kN) – aluminium4.5
Pushout (N) – steel334
Pushout (N) – aluminium225
Torsional resistance (Nm) – steel1.2
Torsional resistance (Nm) – aluminium1.1

Key features

  • Built-in thread locking
  • Steel and stainless
  • Vibration resistant

Applications

Transport electronicsIndustrial controlsMachineryTelecom
Need a size, grade or finish not listed?We also supply special and non-standard parts to drawing.Send enquiry

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