National Bolt & Nut Corporation

National Bolt & Nut Corporation manufactures a broad selection of custom nuts and washers that meet various applications and market needs. If an application requires a custom nut, National Bolt & Nut can deliver with our variety of design options. Read more...

More Product Announcements from National Bolt & Nut Corporation
NBK America LLC

One of NBK's Anti-loosening washers: "Eccentric Lock Washers" can be combined with commercially available hex nuts to prevent screw loosening.
These washers do not require a special tool for fastening, making them as easy to use as spring washers or flat washers.
The high performance of these loosening-prevention washers has been tested by Junker and... Read more...

More Product Announcements from NBK America LLC
NBK America LLC

  • There is a variety of outside diameters and thickness relative to normal plain washers.
  • For securing seating surface on the long hole position and engagement of materials with low marginal seating surface pressure such as aluminum and resin.
  • ​As a collar and a spacer, it can adjust the cumulative error in assembly.
  • Steel and Stainless Steel a...
Read more...

More Product Announcements from NBK America LLC
SPIROL

Disc Springs are conically-shaped washers designed to be axially loaded. Since deflection of a Disc Spring at a given load is predictable, it is possible to calculate force and stress levels within the Disc. This paper focuses on the use of Disc Springs and how to estimate fatigue life in dynamic situations. Read more...

More Product Announcements from SPIROL
National Bolt & Nut Corporation

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.
Read more...

More Product Announcements from National Bolt & Nut Corporation
APM Hexseal Corp.

Molded silicone rubber bonded to specially formed stainless steel washers. APM Hexseal SEELOC washers are THE ideal UL- Recognized sealing solution in any mechanical, electrical and electronic applications requiring high- performance, air/liquid-tight sealing. Use our SEELOC washers with conventional screws, bolts or studs to complete the sealing and locking action. Read more...

More Product Announcements from APM Hexseal Corp.
National Bolt & Nut Corporation

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
Read more...

More Product Announcements from National Bolt & Nut Corporation
American Belleville

American Belleville Load Washers, also known as Heavy Duty Safety Washers, are designed for use in static bolting applications where requirements for higher axial loads than those of traditional Belleville Washers, are present. They are configured for optimal use with Grade 5 bolts, and manufactured in accordance with the specifications outlined in the European DIN 6796. Read more...

More Product Announcements from American Belleville
American Belleville

American Belleville’s Flange Washer line adds deflection to bolted joints, in order to dramatically reduce the effects of large fluctuations in temperature within the application, vibration, bolt creep (stretch), gasket creep, or relaxation, and other elastic interactions within the joint. Read more...

More Product Announcements from American Belleville
National Bolt & Nut Corporation

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...

More Product Announcements from National Bolt & Nut Corporation