National Bolt & Nut Corp. - Bloomingdale, IL (Serving Michigan) Distributor, Manufacturer, Custom Manufacturer, Service Company
Woman-owned ISO 9001:2008 certified manufacturer of standard & custom serrated flange screws available in 1/4 in. to 3 in. length with 1/4-20 to 10-32 thread sizes & zinc & clear finish. Screws are suitable for agricultural, automotive, truck, heavy equipment, mining & railroad industries.