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50526 - Nut – 3/8" BSF – Self-Locking

Original price - Original price €1,40
Original price
€1,40
€1,40 - €1,40
Current price €1,40
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Aftermarket Part
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Self-Locking Nut, 3/8" BSF, used to secure propshaft fasteners within the drivetrain.

The deformed thread form provides a self-locking action that resists loosening under vibration. Use only with the original propshaft bolts; it is not compatible with bolt 509045P.
Vehicle Model Land Rover Series 1
Land Rover Series 2 and 3
Fitment Notes SERIES I/II/IIA/III — 3/8 BSF Self-Locking Nut (use only with original propshaft bolts — not with 509045P)
Alternative Codes
5052650526ES

In stock 71 units
71 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the 3/8 inch BSF self-locking nut used for?
This 3/8 inch BSF self-locking nut secures propshaft fasteners in the drivetrain on Series Land Rovers. Its deformed thread form gives a self-locking action that resists loosening under the vibration a propshaft sees in service.
How many self-locking nuts are needed for a propshaft?
A propshaft flange typically uses four fasteners per joint, so a full propshaft usually needs several of these nuts. Check how many bolts your propshaft flanges use and order a matching quantity plus spares.
Can the 3/8 inch BSF self-locking nut be reused?
Self-locking nuts like this are typically single-use. The deformed thread loses its grip once the nut has been undone, so fit new nuts whenever the propshaft is disturbed rather than refitting the old ones.
Which bolts should this nut be used with?
Use this self-locking nut only with the original propshaft bolts. Pairing it with a non-standard bolt can stop the deformed thread locking correctly, so keep it matched to the original propshaft fastener.