Series 2/2a dashboard bolts - thread ?

[Aaron IIA]

If I remember correctly, the front clearance and indicator lenses are secured with BA threads aswell.

Aaron

[JDNSW]

There are a number of other BA screws on Series 2/2a Landrovers - basically anything smaller than 1/4" is probably BA, and certainly under 3/16" (if original). By the end of 2a production some of these started to be replaced by UNF.

Some other places you may find BA include the screws holding the nameplate on the back, the cover over the wiper cables (post 1967) and screws on light and electrical fittings.

[mick88]

I was debating whether to mention that.......

Surprisingly for a 19th century British thread form, BA is a metric thread - but the thread form is much sharper (smaller angle) than ISO metric.

3/16th BSF is only a smidge different too!
A few thou different in diameter, and almost the same TPI, slightly different thread angles.

Cheers, Mick.

[JDNSW]

BA 47.5 degrees, BSW and BSF 55 degrees, and UNC and UNF and ISO 60 degrees. Details of the thread crest and trough vary between the standards.

[JohnboyLandy]

Thanks guys, I found some 2BA x 3/4 at classicfasteners, in the post to me now.

Cheers,
John