For several years carbon diffusers on
Aston Martins have been attached
with bigHead fasteners and BigBond
adhesive. Surface mounted on the
inside of the diffuser, the bigHeads
are invisible, with neither rivets nor
drill holes necessary. Due to the
design of the perforated ‘head’, glue
flows through the holes and hooks
the fastener into position, achieving
high stability and strength.

The weld integrity of every bigHead
fastener is tested in-house. Last year
the company achieved the low defect
rate of 18ppm and, with the
introduction of lean manufacturing,
this is expected to fall further.