+1 for Tubal Cain; it's concise and cheap enough to replace if it gets mucky in a workshop.
I rate my 1947 Newnes Engineer's Reference Book highly. It has an emphasis on British practice (also covers metric and US)
For wider reference, it's hard to beat Machinery's Handbook. My copy (1975) covers US, British and Metric. Newnes is 1378 pages (and does most of what I want). Machinery's has more depth and coverage in 2482 pages .
My Newnes and Machinery's were both bought cheap secondhand; the internet is wonderful.
Be aware that although older books cover all the basics well and are very helpful with long obsolete standards needed to do a restoration, they don't cover important modern techniques and materials like DROs, Carbide Inserts, VFDs, 3D CAD and adhesives etc. etc. Another common booby trap is the wild goose chase resulting if you try to source long discontinued brands and material sizes. Sometimes they are unobtainium, or, as is the case with Whitworth fasteners, only available from specialists at top-whack prices. The older the book, the worse the problem.
Dave