Screw Insulators

A screw insulator can also be known as a shoulder washer.

The screw insulator is designed to insulate screws, rivets or wire from an assembly.

Features and Benefits of a screw insulator

• Thermally insulate a screw from making metal to metal contact
• Reduce Vibration
• Act as Spacers and Guides
• Are Strong and Corrosion Resistant
• Can be Used as Seal in Some Applications

Why and when to use a screw insulator?

Screw insulators can be inserted into a housing to provide a bearing surface for rotary applications.
The flange on the screw insulator is used to locate the bushing when it is installed or to provide a thrust bearing surface.
Screw Insulators are used to prevent heat flow through the screw to other parts of the thermal assembly.

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Description Price For Screw Size Inside Diameter Body Outside Diameter Body Length Flange Diameter Flange Thickness Material
RS Stock No. 178-670
BrandRS PRO
MYR21.34
1 Bag of 50
Bag(s)
M3 3.1mm 4mm 4mm 6.2mm 1 mm Nylon
RS Stock No. 178-658
BrandRS PRO
MYR15.44
1 Bag of 50
Bag(s)
M3 3.1mm 4mm 2mm 6.2mm 1 mm Nylon
RS Stock No. 178-759
BrandRS PRO
MYR8.37
1 Bag of 50
Bag(s)
M4 4.1mm 6mm 7mm 8.2mm 1.5 mm Nylon
RS Stock No. 178-664
BrandRS PRO
MYR24.16
1 Bag of 50
Bag(s)
M3 3.1mm 4mm 3mm 6.2mm 1 mm Nylon
RS Stock No. 178-715
BrandRS PRO
MYR13.78
1 Bag of 50
Bag(s)
M3 3.1mm 4mm 8mm 6.2mm 1 mm Nylon
RS Stock No. 178-872
BrandRS PRO
MYR26.94
1 Bag of 50
Bag(s)
M8 8.1mm 10mm 6mm 14.2mm 2.5 mm Nylon
RS Stock No. 178-866
BrandRS PRO
MYR22.56
1 Bag of 50
Bag(s)
M8 8mm 10mm 4mm 14.2mm 2.5 mm Nylon
RS Stock No. 178-787
BrandRS PRO
MYR18.00
1 Bag of 50
Bag(s)
M5 5.1mm 7mm 4mm 10.2mm 2 mm Nylon
RS Stock No. 178-793
BrandRS PRO
MYR17.01
1 Bag of 50
Bag(s)
M5 5.1mm 7mm 5mm 10.2mm 2 mm Nylon
RS Stock No. 178-771
BrandRS PRO
MYR13.38
1 Bag of 50
Bag(s)
M5 5.1mm 7mm 3mm 10.2mm 2 mm Nylon
RS Stock No. 178-894
BrandRS PRO
MYR22.20
1 Bag of 50
Bag(s)
M8 8.1mm 10mm 12mm 14.2mm 2.5 mm Nylon
RS Stock No. 178-686
BrandRS PRO
MYR25.24
1 Bag of 50
Bag(s)
M3 3.1mm 4mm 5mm 6.2mm 1 mm Nylon
RS Stock No. 178-721
BrandRS PRO
MYR16.62
1 Bag of 50
Bag(s)
M4 4.1mm 6mm 3mm 8.2mm 1.5 mm Nylon
RS Stock No. 178-816
BrandRS PRO
MYR13.63
1 Bag of 50
Bag(s)
M5 5.1mm 7mm 9mm 10.2mm 2 mm Nylon
RS Stock No. 178-822
BrandRS PRO
MYR25.12
1 Bag of 50
Bag(s)
M6 6.1mm 8mm 4mm 12.2mm 2 mm Nylon
RS Stock No. 178-844
BrandRS PRO
MYR22.96
1 Bag of 50
Bag(s)
M6 6.1mm 8mm 8mm 12.2mm 2 mm Nylon
RS Stock No. 178-743
BrandRS PRO
MYR14.29
1 Bag of 50
Bag(s)
M4 4.1mm 6mm 5mm 8.2mm 1.5 mm Nylon
RS Stock No. 178-850
BrandRS PRO
MYR15.70
1 Bag of 50
Bag(s)
M6 6.1mm 8mm 12mm 12.2mm 2 mm Nylon
RS Stock No. 178-636
BrandRS PRO
MYR18.60
1 Bag of 50
Bag(s)
M2 2.1mm 3mm 3mm 4.2mm 1 mm Nylon
RS Stock No. 178-737
BrandRS PRO
MYR12.49
1 Bag of 50
Bag(s)
M4 4.1mm 6mm 4mm 8.2mm 1.5 mm Nylon
Related Products
Although primarily intended for the isolation of metal ...
Description:
Although primarily intended for the isolation of metal screws, these insulating spacers are also suitable for use as lightly loaded bearings.
Set of insulating bushes for insulation between the ...
Description:
Set of insulating bushes for insulation between the component and the heatsink.Available in polyester (version D); nylon (version N) or fibreglass reinforced polyester (GFP version).