Selecting the proper fastener material and finish can make or break a project—especially those with intended applications underwater or in harsh environments. With many options available, many professionals struggle to find the best choice for their application.
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Left-Handed vs Right-Handed Fastener Threads: Uses and Comparison (read more)

National Bolt & Nut serves a wide variety of customers within the mining industry. From surface to underground mining equipment, NBN provides high strength and high quality fasteners that can satisfy the toughest earth-moving requirements (read more)

With more than 60+ years of technical fastener expertise amongst our highly trained staff, National Bolt & Nut is able to respond quickly to the demands of engineers and purchasing managers who need custom fasteners made to spec efficiently and with the utmost quality (read more)

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. (read more)

National Bolt & Nut currently supplies the following fasteners to customers in the Alternative Energy industry:

• Heavy Hex Nuts
• Heavy Hex Bolts
• Structural Washers
• Double Ended Studs
• T-Bolts

Custom Bolts & Fasteners for Heavy Equipment & Construction

National Bolt & Nut provides a large variety of high quality structural fasteners to customers in the heavy equipment and construction industry. (read more)

Constructed from heat treated alloy steel, National Bolt & Nut dowel pins are commonly used as shelf supports in furniture or as supports for hanging items. (read more)

The PN-12506 Plain Cotter Pin features an extended prong style. This prong style makes it easier to separate the tines during application. (read more)

National Bolt & Nut offers a series of 1/4–5/8 inch diameter hex head cap screws that meet ANSI B18.2.1 dimensional specifications. The diameter hex head cap screws are reliable fasteners for both construction and machinery parts. (read more)

Metric flat head hex socket cap screws are ideal for applications that call for a more polished finished look or for applications where there is not enough wrench/socket space for a typical hex head cap screw to fit. (read more)

Constructed from hardened steel material, the helical spring lock washers meet ANSI B18.21.1 dimensional specifications and are equipped with a plain finish. (read more)

National Bolt & Nut’s selection of bolts is wide-ranging and able to suit most any requirement that you may have. We also feature an extensive inventory of nuts, ensuring proper fastening strength, load distribution, and protection from shearing. (read more)

National Bolt & Nut provides a large variety of high quality structural fasteners to customers in the heavy equipment and construction industry.  (read more)

National Bolt & Nut Corporation is an ISO Certified Nationwide Manufacturer of Stocked and Custom Nuts, Bolts and Fasteners (read more)