Metal spirals in every shape and size which may come with internal and external centralising ring. They are made of a metal band wound in a spiral coupled with a filling material (generally graphite).
Ring Joints which are produced in metal, soft iron and Aisi 316. They are produced for mechanical work and are guaranteed to support the very high compression loads they are subjected to.
Sheared washers. To meet the high demand in the machinery sector in general they can be in: teflon, graphite, reinforced graphite, asbestos-free, rubber cloth.
Also:
A193 B7 and B8 tie rods
bolts, nuts and filleted bars in 8.8 steel and stainless steel.