Hitchcocks Forum

Hello All, does anyone know the thread type and size for the small screws which secure tank badges on ‘50s Redditch models?

Thanks

Stephen

2BA is ringing bells, let me check and I'll confirm that in a while.



A.

I think it's 3/16" Bsf? And don't get them too long! REgards, Mark.

2BA x 1/2 inch countersunk

I don't know the exact size but I think on my 500 twin they were shorter than 1/2 inch - they definitely are countersunk. I'll try and measure the length later. The screws to hold on my chrome panels were longer as I recall.

Try host website - http://accessories.hitchcocksmotorcycles.com/18725

Yep, part no. 42195, 90p each (including VAT) from our hosts.



If you want stainless steel, a search on that well-known auction site under A2 Stainless Steel 2BA Raised Countersunk Slotted Head Machine Screws might yield something...



A.

1956 500 Twin - just measured (roughly) against a metal tape measure - 5/16 inch. If they are too long they won't work.

Thanks everyone!

Stephen

Stephen, I just had a thought, which tank badges are we talking about? There were 2 sorts in the 50s, the early pressed metal ones which use a BA size (3BA I think but I can check a tank,) and then the later plastic 'crown' badge which screws either directly to the tank OR to the chrome 'teardrop' trim panel. and which uses what I think is a Bsf screw. The reason for not using too long a screw with the trim panels is that they will push through and lift the panel away from the tank leaving an ugly gap. An easy mistake to make, even a bike in the National Motorcycle Museum is restored like this.

REgards, Mark