4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon

Product code: WASH221
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4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
4.5mm x 8.1mm (M4) Locking Washer (2-Pronged) 4.0mm Thickness | Nylon
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £0.07 £0.08
100 - 999 £0.06 £0.07
1000 - 9999 £0.04 £0.05
10000 + £0.03 £0.03

£0.08 / each


Average production time 14 + days.
Vital Parts - Here to make bulk ordering easy.

Product Specification
Size M4
Internal Diameter 4.5mm
Grip Diameter 3.30mm
Outside Diameter 8.1mm
Thickness 4.0mm
Type 2 Prong
Material Nylon
Colour Natural

Next Day or Standard Delivery available via DHL or Royal Mail.
Order by 4pm (UK) for same day dispatch, Monday to Thursday or 2pm Friday.

Larger Order?

Call our sales team on

01233 713581


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4.5mm x 8.1mm M4 Anti-Loss Washer | 2 Prong | 4mm | Nylon

For electrical equipment and control assemblies, this M4 pronged retaining washer helps reduce the chance of loose fasteners being misplaced during fitting, maintenance or transport. Its 2 prong design combines a 3.30mm grip diameter with a 4.5mm internal diameter to hold around the compatible fastening point.

What Are Anti-Loss Washers?

Pronged Retaining Washers are fitted over compatible fasteners to create a light interference grip around the shank or thread. This helps keep screws and bolts associated with panels, covers and equipment where the fastening point may be opened repeatedly.

Common Applications

  • Electronics: Provides a lightweight retaining washer for screws used in housings, boards and equipment assemblies.
  • Service Panels: Keeps screws with removable covers or access panels when they are opened for inspection or maintenance.
  • Instrumentation: Helps keep small fasteners attached to equipment housings and adjustment assemblies.
  • Electrical Equipment: Helps keep compatible screws associated with panels, housings and covers during installation or servicing.

M4 2 Prong Anti-Loss Washer Dimensions

  • Size: M4
  • Internal Diameter: 4.5mm
  • Grip Diameter: 3.30mm
  • Outside Diameter: 8.1mm
  • Thickness: 4.0mm
  • Type: 2 Prong
  • Material: Nylon
  • Colour: Natural

Key Benefits

  • M4 size provides the stated fastener reference for this washer.
  • 3.30mm grip diameter creates the retaining interference around the screw or bolt.
  • 2 Prong format provides the stated number of retaining prongs.
  • Flexible prongs help keep the compatible fastener attached during assembly, transport or servicing.

Browse the wider Anti Loss Washers collection to compare different dimensions and retaining-prong styles. We can help you choose the correct retaining washer for your application on 01233 713581.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
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