Weekly Email News for the Glass, Glazing & Fenestration Industries

Lower profile screw
30th July 2019

RAPIERSTAR is tackling the problem of sticking, scraping and binding friction stays with the development of is new LFG low profile screw.

LFG was developed by the company at its NPD and technical centre in Cheshire in combination with a friction stay manufacturer. It is manufactured in austenitic stainless steel (grade 302) to provide enhanced resistance to corrosion, with a lifespan of at least 25 years guaranteed.

The company says: “In certain circumstances, such as where a friction stay fastener is not inserted at a precise 90 degrees, or swarf causes slight misalignment of the screw as it is driven into place, the head will be raised slightly. This will snag the friction stay during opening and closing of a casement window and impact on its smooth operation.”

MD David Furness added: “Traditional pan head fasteners, like those in our StarPVCU range, fit the bill perfectly under normal circumstances, but we know that the limited clearance between the opening sash and frame leaves little margin for error. By engineering a fastener with a lower profile head, which has been achieved without compromising its technical performance, we can now offer fabricators another option to remove the risk of sticking, scraping and binding resulting in their casement windows over time.”


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