Keep in mind that these are not standard parts. Each probe can be a slightly different size. Tektronix had multiple sizes (2.5mm, 3.5mm and 5mm) for different probes. But none of them would fit a HP/Agilent probe.
A universal but bulky alternative is to convert the probe tip to BNC, and use BNC panel or PCB connectors. Decent probes will either ship with probe tip to BNC adapters or will have them available as optional accessories.