M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE

Product code: TPNWC-M20-144-T-B
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M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
M20 (144mm Height) Telescopic Thread Protection Nut & Washer Cap (DIN 125) - For 40.4mm Washer | Black LDPE
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £2.09 £2.51
100 - 499 £2.02 £2.42
500 - 999 £1.94 £2.33
1000 + £1.90 £2.28

£2.51 / each


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

Product Specification
Thread Size M20
Nut Across Flats 30mm
Inside Height 144mm
Outside Diameter 40.4mm
Washer Diameter 37.0mm
Washer Thickness 3.0mm
Material LDPE
Telescopic Yes
Lock Nut Suitable Yes
Colour Black

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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M20 x 144mm Telescopic Thread Protection Nut and Washer Cap DIN 125 | 40.4mm OD | Black LDPE

Used on visible or exposed bolted joints, this M20 cap is designed to hide the nut and washer while accommodating longer stud lengths.

The design supports tool-free fitting, making it useful for maintenance teams replacing missing caps or finishing new installations. The cap can be pushed over the nut and washer area once the fixing has been tightened. It is sized for a 30mm nut across flats and is designed to work with a 37mm washer diameter.

What Are Telescopic Thread Protection Nut and Washer Caps?

Telescopic nut and washer caps are push-fit protective covers used where the stud or bolt projects beyond the nut. On this M20 version, the taller body helps cover the nut, washer and exposed thread while the internal ribs assist grip during fitting.

Common Applications

  • Protecting sign support fixings
  • Covering protruding bolts on gantries
  • Finishing washer areas on external signage frames
  • Reducing exposure to weather and grime

M20 x 144mm Telescopic Nut and Washer Cap DIN 125 Dimensions

  • Thread Size: M20
  • Nut Across Flats: 30mm
  • Inside Height: 144mm
  • Outside Diameter: 40.4mm
  • Washer Diameter: 37mm
  • Washer Thickness: 3.0mm
  • Telescopic: Yes
  • Lock Nut Suitable: Yes
  • Material: LDPE
  • Colour: Black

Related Thread Protection Caps

To compare this option with other telescopic heights, view the full Thread Protection Nut and Washer Caps DIN 125 range.

Product Support and Trade Orders

For technical questions, sample planning or volume pricing on telescopic nut and washer caps, our team can provide straightforward support before you buy. Call 01233 713581.

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