Lightweight solution for carbon fibre and composite panels 24 September 2019

EFC International’s offering of the BCT Rivet Nut is a best practice lightweighting solution for attaching carbon fibre and composite panels in automotive. The rivet nuts are manufactured by BBA with BCT® (Bulge Control Technology).

BCT Rivet Nuts are ultra high strength and engineered to prevent cracking or delamination of carbon fibre panels. The patented design enables an engineered yield point on the body of the rivet nut – ensuring the bulge formation always begins beyond the panel and is drawn back on the panel. BCT Rivet Nuts can be placed near the edge of the panel without fear of inducing a crack.

The installation process of BCT Rivet Nuts can be fully process monitored and controlled. They can be installed into areas that offer limited rear side clearance. An M6 rivet nut needs only 8mm of rear side clearance prior to installation and only 5mm after installation. This is perfect for use in thinner version of sandwich (composite) materials, avoiding the need for a through hole. The bulge of the BCT product is strong enough to form by pushing away any material in the sandwich material.

Additionally, producing BCT Rivet Nuts from aluminium for use in aluminium and magnesium, weight is reduced dramatically.

EFC International is a leading global supplier of speciality engineered metal, plastic, cold formed, spring steel stampings, electrical and assembled component parts to the OEM and distribution markets – serviced from locations in North America, Europe and Asia.


Will Lowry Editor t: +44 (0) 1727 814 509


Will joined Fastener + Fixing Magazine in 2007 and over the last 12 years has experienced every facet of the fastener sector - interviewing key figures within the industry and visiting leading companies and exhibitions around the globe.

Will manages the content strategy across all platforms and is the guardian for the high editorial standards that the Magazine is renowned.