Creative minds and high expertise
Eight creative thinkers launched the development project at SFS. Intensive thought showers during a dedicated workshop provided a wide range of product concepts. Two months later, 27 different ideas were critically evaluated, with just two making it through to the final round.
![SFSC_Schraube setzte neue Massstäbe_Busdepot_2019](/success-stories/2019/construction/Schraube-setzt-neue-Massstäbe/SFS-C_Schraube-setzte-neue-Massstäbe_Busdepot_2019_contentHeaderHighlightMobile.jpg)
A screw sets new standards
![SFSC_SchraubesetztneueMassstaebe_SXC5_2019](/success-stories/2019/construction/schraube-setzt-neue-massstäbe/sfs-c_schraube-setzt-neue-massstaebe_sxc5_2019_textimagemobile.jpg)
From prototype to SXC5
The project team developed 15 different variants for each of the two competing designs, with the next step being to produce and trial 30 different prototypes: an essential capability available to SFS in-house. In up to 20 separate production steps the individual drilling screws were manufactured and put to the test using realistic conditions with the sole aim of increasing the key technical parameters.
![SFSC_Schraube setzte neue Massstäbe_Busdepot_2019](/success-stories/2019/construction/schraube-setzt-neue-massstäbe/sfs-c_schraube-setzte-neue-massstäbe_busdepot_2019_videopostermobile.jpg)
An innovative fastener with countless advantages
Achieving a larger flange and head diameter were clearly the least problematic issues; likewise, the project team soon managed to create the required asymmetric threading, visible to the naked eye, by working closely with manufacturing colleagues. The real challenge lay in the micro-metre adjustments required. Nevertheless, these creative minds managed to achieve a massive 50% increase over the previous tear-out performance. The thread geometry of an individual SXC5 could be adjusted to offer the customer two savings: either reducing the number of fastener positions and/or optimising the thickness of the substructure. Both options translate into considerable savings for the customer.