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Motorcycle Discussions => British Bikes => Topic started by: sTe140Ve on March 26, 2009, 09:33:16 PM

Title: T140 Thread Sizes?
Post by: sTe140Ve on March 26, 2009, 09:33:16 PM

As I go through my T140V rebuild I want to renew as many nuts and bolts as possible with stainless. It's easy enough to find eBay sellers overcharging for stainless bolt sets but I am sure I could find a cheaper source if only I knew the thread sizes I need. Is there an index of Triumph thread sizes anywhere?

Title: Re: T140 Thread Sizes?
Post by: L.A.B. on March 26, 2009, 10:06:12 PM

Quote

Is there an index of Triumph thread sizes anywhere?

Yes, - if you know their part numbers:
http://stainlessbits.com/link12.html

Anyway, the majority of T140 fasteners should either be UNF (bolts with nuts) or UNC (bolts & screws into alloy).

Amal Mk1 carbs have either 2BA or BSCycle threads, petrol tap/tank fittings (for V models) are 1/4 BSP (.518")  

Common British threads: http://www.britishfasteners.com/threads/index.html