M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE

Product code: STNC-M39-125-68-B
View All Specifications
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
M39 (125mm Internal Height) Self Threading Nut Cap - 68mm Max Nut Height | Black LDPE
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £12.54 £15.05
100 - 249 £11.29 £13.55
250 - 499 £10.17 £12.20
500 - 999 £8.13 £9.76
1000 + £6.51 £7.81

£15.05 / each


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

Product Specification
Thread Size M39
Inside Height 125mm
Outside Diameter 85.9mm
Internal Diameter 73.6mm
Nut Height 68mm
Lock Nut Suitable Yes
Colour Black
Material LDPE

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


Frequently Bought Together

Total Price: £0.00

M39 x 125mm Black Self Threading Nut Cap (68mm Max Nut Height) | LDPE

For large diameter bolted joints, this black M39 self threading cap offers a practical way to cover threads that would otherwise be left open to weathering. It is suited to M39 self threading cap searches where the key requirement is thread protection with a secure black cap finish.

The self threading rib design avoids the need for a pre-cut internal thread, so the cap can bite onto the stud during installation. Once seated, the bottom lip helps reduce water and debris reaching the fastener. This SKU is also listed as lock nut suitable, making it a strong option where the cap must accommodate a 68mm nut height. The nut protection cap wording suits maintenance teams looking for a reliable cover for exposed threaded ends. For projects that need a hex fitting cap, the black LDPE body gives a clean appearance with practical thread coverage.

Common Applications

  • Roadside infrastructure
  • Guardrail fastening
  • Transport depot maintenance
  • Weather-exposed bolted joints

M39 x 125mm Self Threading Nut Cap Dimensions

  • Thread Size: M39
  • Inside Height: 125mm
  • Outside Diameter: 85.9mm
  • Internal Diameter: 73.6mm
  • Nut Height: 68mm
  • Lock Nut Suitable: Yes
  • Material: LDPE
  • Colour: Black

Product Support and Trade Orders

For project quantities, repeat supply or custom RAL colour discussions, our sales team can help confirm availability and suitability. Contact Vital Parts on 01233 713581 if you need support choosing the right cap.

View our full Self Threading Nut Caps range.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
✕
Bronze
£1.00 = 1
Earn 1 point for every £1.00 spent
lifetime spend from £200.00
Silver
£1.00 = 1
Earn 1 point for every £1.00 spent
lifetime spend from £1,000.00
Gold
£1.00 = 1
Earn 1 point for every £1.00 spent
lifetime spend from £20,000.00