For applications where the material thickness varies, the Stanley Avdel Avex rivet is the perfect solution.  It’s designed with an wide variable grip range which makes it versatile and ensures you get the correct strenght regardless of your material thickness. The aluminium or steel body with a positively retained steel stem gives excellent hole fill. The placed fastener is resistant to the ingress of non pressurised water and air. We stock in a wide variety of sizes, 2 head styles and some sizes in black.