I like to keep UK made parts on my British bikes as much as possible. I've used a few different tank hardware kits over the years and this one is the best I've used. The last one I received is made by L.F. Harris in the UK, a well known manufacturer of quality replacement bits for Brits. I especially like the low profile, domed bolt head on the rear mount of this kit. The rubber bits are also high quality and are more pliable and flexible compared to some other kits I have used. They just got the details right. The speed-wire holes in the front bolts are nicely chamfered and everything just looks and feels a bit better compared to other kits I've used.
When I needed my last kit the website indicated "out of stock" but the Lowbrow Ebay store did have it and it shipped quickly from Lowbrow with the usual free sticker, etc.
I realize this sounds like a paid endorsement, but it's not. I just like good stuff for my bikes.