Similarly, the substrate materials resist compression to balance the clamping pressure this is known as the joint preload. The bolt material, most commonly steel, resists this natural stretching and creates a clamping force upon the assembled substrates. Proper torqueing is vital to the function of the bolt and is determined by several, often conflicting factors.Ī properly tightened bolt has its material stretched slightly, but not beyond its elastic limit. Why did that joint fail? More than likely, it was an issue of inadequate torqueing. Fastener orders from Bayou City Bolt are on time bolts are always to specification, and they are affordable for any organization. Bayou City Bolt has more than 50 years of experience with helping customers find the right hardware for any application. Worse yet, a dissatisfied customer often shifts blame to faulty hardware or a mediocre supplier.īut a supplier with superior product knowledge and exceptional customer service can make an enormous impact on your company’s bottom line. When a bolt-fastened joint fails, not only have the workpieces been ruined, but the purchaser is none the wiser as to why that joint failed. What shank diameter and length do I need? Metric or imperial? Thread pitch? The purchaser believes he or she has their assembly challenge met after considering just a few parameters. Too often bolt selection is made in haste. Perhaps it’s their ubiquity that makes bolts so underappreciated as a mechanical component. From the rigors of the industry to the rumble of cars, trains, and planes, to the furniture that adorns our homes and offices, bolts play an integral role in assembling the materials that structure our lives. These fasteners literally hold the world around us together.

Bolts and screws are so ubiquitous that it’s impossible to fully articulate their importance or applications.

Bolt torque chart pdf