Posted for "genemartin" <genemartin@enid.com>:

Larry what size are you looking for...I see these in fuel sys. TCM is usually
brass though.

"""
I am looking for a steel nipple that has the tiny hole. The purpose is to
connect to an oil pressure or fuel pressure gauge while mitigating
possibilities of catastrophic oil loss. I would be really impressed if I could
find it with a 45 degree.
"""