: The gold standard for professional projects. They carry almost every conceivable size with exceptionally fast shipping, though they often require buying in small packs rather than individuals.
: A popular choice for high-quality fasteners in low quantities with much better pricing than standard hardware stores. where to buy metric bolts
: Specializes specifically in metric hardware, making them a top choice for automotive and European machinery parts. : The gold standard for professional projects
: Usually have numbers like 8.8, 10.9, or 12.9 indicating strength. three marks for Grade 5).
: Usually have radial slashes (e.g., three marks for Grade 5).