The centre of the base of this bonding fastener has a hole that allows machine-threaded rods to be screwed from either side of the fastener.
The 23mm round mild steel base is welded to a female-threaded cylinder. This type of fastener is wildly used across many industries where components need to be screwed onto a surface.
The pass-through design enables it to be used either way up with some applications having the collar protruding from the surface or embedded into it. Fixing can typically be by structural adhesives, screws, or moulding.
If you don't see the size you are looking for in the table below, please get in touch as other options can be supplied subject to minimum order quantites.