These dome head multigrip blind rivets from Bralo have an aluminium body and a mandrel made from zinc-plated steel. Multigrip rivets offer a wider gripping range than standard rivets. These "pop" rivets are available with a thread of 3.2, 4.0, 4.8 and 6.4mm in a variety of lengths suitable for use with panel thicknesses from 0.5 up to 20mm.