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Unthreaded fastener with coiled locking wedge - the more vibration, the tighter the fitting

Gala Tent : 07 May, 2013  (New Product)
Gala Tent, a company that transformed the event industry by making it more affordable to buy than to hire marquees and gazebos, has developed the innovative Spirotite unthreaded fastener that is set to revolutionise the way fasteners are used in industry.
Unthreaded fastener with coiled locking wedge - the more vibration, the tighter the fitting

The Spirotite fastener has all the advantages of threaded fasteners – without the disadvantages of the thread. Whereas threads can work loose under vibration and also makes maintenance difficult, this innovative fastener works on compression. Hence, the more vibration, the tighter the fitting. Spirotite fitings are therefore much safer and more secure than traditional threaded fittings and offer a faster set up and lower maintenance of a product. It is also much more effective than a traditional ‘nut and bolt’ system, which is less secure, less durable and can easily come loose.
Due to the faster production process, Spirotite fasteners are also lower cost to produce, so are more affordable for the end user.
Jason Mace, Managing Director of Gala Tent, said: “We are really excited about this innovation which is suitable for a wide range of applications from automotive to tool manufacturing to engineering. As well as being an extremely effective and user friendly product, Spirotite is produced to the highest quality standards here in the UK.”
The idea for Spirotite was originally developed for Gala Tent for its marquee joint and it means the company’s garden marquees will be even easier and quicker to erect. For the larger commercial modular structures, the Spirotite fastener will also enhance the security of the marquee, as well as speeding up the process of erecting it.
The innovative patented design of the fastener features a coiled locking wedge which mates with an equal and opposite wedged groove. It provides what appears to be a parallel square section internal thread, the nut of which can be slipped over and pushed along a plain shaft until it is in the position required. The body of the fastener is then turned by hand, or with a suitable tool, closing it tight. A slight deformation on the leading and trailing edge of the locking element and its housing groove generates a consistent radial force, which grips the shaft tightly. To double the fastening force, all that needs to be done is to double the number of turns.
Spirotite’s technology is suitable for a wide range of applications, such as Formula One, to enable a quick change of wheels with adjustable lock-buts, where long lengths of studding would normally be required. It is also ideal for quick-release systems, for example for use in replacement joints for medical purposes. Spirotite is particularly well suited for use in production line products, such as in the automotive industry, where compression fitting is currently used.

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