High strength, certified fasteners Transportation
Featured Product from National Bolt & Nut Corporation

Custom Bolts & Fasteners for the Transportation Industry
National Bolt & Nut provides a variety of bolts to the transportation industry. Given the long hours and wear and tear on fasteners used in railroad, tractor-trailers, and a variety of over-the-road vehicles, these parts are required to be high strength and certified for their durability.
We offer complete Chemical, Physical and Letters of Compliance certification upon request. Our in-house Quality Control department, which is A2LA accredited provides material and heat lot traceability for every custom fastener NBN manufactures.
- National Bolt & Nut currently supplies the following fasteners to customers in the Transportation industry:
Custom Bolts and Fasteners
Our bolts are used by a broad range of industries requiring assemblies and fastening applications. These threaded fasteners can connect machine parts, mount equipment, and more. As a removable fastener, they also facilitate the regular maintenance and inspections that keep equipment running longer.
National Bolt & Nut Corporation offers both standard and custom bolts and fasteners to meet different grades and specifications. This ensures we can cover the full spectrum of our manufacturing customers' applications, including:
Watch>>>Fastener Material Selection and Plating Guide
Learn how to choose the best Fastener Material & Finish for your project, what are the different Materials Properties, what is Galvanic Corrosion and more here
Watch>>>Custom Bolts and Fasteners | National Bolt & Nut Corporation
We manufacture standard and custom bolts to meet your specifications. Offering a large variety of fastener, thread, bolt, and screw head types, click here to learn more
National Bolt & Nut, Inc.
National Bolt & Nut, Inc. (NBN) is a Domestic Manufacturer of large diameter custom non-standard fasteners for critical care applications.
NBN supplies Bolts, Nuts, Studs and Washers to the Agricultural, Energy, Heavy Equipment, Mining, Petrochemical, and Rock Crushing industries.
We have provided "blue print specials" since 1996 in all grades of steel and exotic materials.
Our ISO compliant Quality Program challenges NBN to identify ways to best serve ever changing customer needs. All fasteners are manufactured to ASME, ASTM, DIN, ISO and to customers proprietary standard specifications.
NBN guarantees to offer custom quality fasteners at the best price with the fastest industry lead times available.