https://www.fastenerdata.co.uk/american-standards
Fastenerdata - USA fastener Standards 29-c- - Fastener Specifications
Inch fastener products are still the norm in the USA the change over to metric has been slow and primarily in the light automotive industry or companies that...
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https://www.fasten.it/en/norms
Fastener Standards Directory | DIN, ISO, EN, UNI | Fasten.it
Complete fastener standards directory. Compare technical specs and dimensions for DIN, EN, ISO, UNI and ASME. Find cross-references for bolts, screws, and nuts.
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