A glass curtain wall fastener , comprising: a first clamping plate ; a second clamping plate provided opposite to the first clamping plate , the first clamping plate and the second clamping plate are configured to hold a glass panel therebetween; a first connecting part provided on a side of the first clamping plate adjacent to the second clamping plate ; a second connecting part provided on a side of the second clamping plate adjacent to the first clamping plate ; and a connecting element , the first connecting part being connected to the second connecting part via the connecting element ; wherein, when in use in a glass curtain wall, a gap is defined between two adjacent glass panels by the first connecting part , the second connecting part , and the connecting element which are received in the gap ; in a direction from the first clamping plate to the second clamping plate , a sum of an extend length of the first connecting part and an extend length of the second connecting part is less than a thickness of the glass panel , and a extend length of the connecting element is less than the thickness of the glass panel , the remaining space of the gap is filled with structural adhesive , wherein an end of the first connecting part defines a first connecting hole , an end of the second connecting part defines a second connecting hole , and the connecting element extends through the first connecting hole and the second connecting hole characterized in that a projection of the first connecting hole on a plane of the first clamping plate is located outside of the first clamping plate , and a projection of the second connecting hole on a plane of the second clamping plate is located outside of the second clamping plate . a first clamping plate ; a second clamping plate provided opposite to the first clamping plate , the first clamping plate and the second clamping plate are configured to hold a glass panel therebetween; a first connecting part provided on a side of the first clamping plate adjacent to the second clamping plate ; a second connecting part provided on a side of the second clamping plate adjacent to the first clamping plate ; and a connecting element , the first connecting part being connected to the second connecting part via the connecting element ; wherein, when in use in a glass curtain wall, a gap is defined between two adjacent glass panels by the first connecting part , the second connecting part , and the connecting element which are received in the gap ; in a direction from the first clamping plate to the second clamping plate , a sum of an extend length of the first connecting part and an extend length of the second connecting part is less than a thickness of the glass panel , and a extend length of the connecting element is less than the thickness of the glass panel , the remaining space of the gap is filled with structural adhesive , wherein an end of the first connecting part defines a first connecting hole , an end of the second connecting part defines a second connecting hole , and the connecting element extends through the first connecting hole and the second connecting hole characterized in that a projection of the first connecting hole on a plane of the first clamping plate is located outside of the first clamping plate , and a projection of the second connecting hole on a plane of the second clamping plate is located outside of the second clamping plate . <EOS>