Nuts, Bolts and Screws etc.

[stuarthardy]

Hi everyone

Just coming back to rebuilding my 1962 3.8 FHC after a 4 year hiatus and having to re-learn everything.

Does anybody have knowledge of the coding system used by Jaguar for all their nuts, bolts and screws and so on?

The reason for this enquiry is that I don't want to pay Jaguar Parts Suppliers' prices for basic items such as these that can easily be picked up from fastener manufacturers.

I am keen to use sensibly authentic fasteners, without being too precious about it.

Right now I need engine to gearbox/bell housing fixings, as well as self tapping screws for fuel and brake line clips.

Regards
Stuart

[chris.g]

UCS UNC Set Screw
UFB UNF Bolt
UFN UNF Nut
UFS UNF Set Screw

119 = 3/16
125 = 1/4
131 = 5/16
137 = 3/8
143 = 7/16
150 = 1/2

The length is measured in 1/8 ths
2 = 1/4

3 = 3/8
4 =1/2
5 = 5/8
6 = 3/4
8 =1.0
and so on

eg UFB137/11 is UNF bolt 3/8 unf x 1 3/8 long

[stuarthardy]

That's great, thanks.

However, what happens when it comes to self tappers and sheet metal screws? Does anybody know whether they are coded in any significant way?

Thanks
Stuart