Gas-and-water-tight flexible fastener

A gas-and-water-tight flexible fastener comprising:

• an plug being of a substantially arrow-shaped cross-section and including a shaft and a head mounted on a front end of the shaft, the head having a pair of locking fins formed at the proximal ends so as to be directed rearward and outwardly;
• and
• a socket being of a substantially squared C-shaped cross-section and including a base, a pair of substantially parallel side plates one integrally formed with and extending perpendicularly from each end of the base, the side plates having a pair of locking hooks formed along their respective confronting distal edges so as to be directed rearward and inwardly for locking engagement with the locking fins when the plug is forced into the socket between the opposed locking hooks and resilient means interposed between the opposed side plates for defining an inner hollow and an outer locking groove.