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As nuts and bolts are not perfectly rigid, but stretch slightly under load, the distribution of stress on the threads is not uniform. In fact, on a theoretically infinitely long bolt, the first thread takes a third of the load, the first three threads take three-quarters of the load, and the first six threads take essentially the whole load. Beyond the first six threads, the remaining threads are under essentially no load at all. Therefore, a nut or bolt with six threads acts very much like an infinitely long nut or bolt (and it's a lot cheaper).

We stock Nuts and bolts for every kind of job, because we know, when it comes down to it, that's what you need most when buying nuts and bolts - the ability to get all of them in one place.

Bolts are threaded rods or pins that fasten objects together. They usually have a head at one end and a thread at the other. Bolts are secured by threaded nuts, and are available in both metric and non-metric designations. Metric nuts vary by inner diameter (ID) and are usually labeled with the letter "M" followed by the ID in millimeters (mm). For example, M.16 bolts have an inner diameter of 1.6 mm, while M2 bolts have an ID of 2.0mm. Non-metric bolts also vary by inner diameter, but are measured in inches (in) and eighths of inches. Although some English bolts are labeled by ID, others carry a specially-numbered designation. Examples include #0000, #000, #00, #0, #1, and #2 bolts.

Nuts are fasteners that are designed to fit around and secure a bolt or screw. The application determines the type of nut to use.


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