BSW Pre-War Castle Nuts

3/8" BSW Castle Nuts

Quantity Range

Unit Price

Unit Saving



No Saving

2 - 5


No Saving

6 - 10



11 - 25






3/8" British Standard Whitworth pre war castle nuts.

All our nuts are machined from round bar in the following materials:

A standard of steel perfect for nuts and conditions where heat will not affect the materials structure. Ideal for steam engines.

is a slightly tougher material where a bit more strength is require. (Can be heat treated)

-Stainless (304 grade)
Used for applications where you need corrosion resistance.  

Main used for some electrical applications or visual effect.


Quantity Price per nut Total Saving
5 £1.20 £0
10 £1.10 £1.00
25 £1.00 £5.00


Sizing Chart Sizing Chart


Can't find what you need?

We make custom nuts and bolts to almost any specification, so if you need something bespoke please contact us.

Weight 0.016kg