Cardinal Fastener Inc. is one of the largest fastener manufacturers of large diameter, hot forged bolts in America. We can manufacture a variety of head styles and diameters up to 4-1/2" or M72, which can be seen on our innovative birdie chart.

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Cardinal prides itself on having the shortest lead times (as fast as same-day) of any manufacturer in the world. Our unsurpassed quality is matched by the lowest manufacturing cost of any hot forger in North America. That's how we became one of the first fastener manufacturers in the world to receive ISO 9001:2008 certification.