TAA-1/4-28-1/4-20 Tension alignment assy

Each alignment assembly includes an internally coarse threaded housing w/wrench flats which contains a teflon insulator that mates with a spherical headed stud w/fine thread.
The 3/4" and 1" units have a delrin insulator.
Includes (1)fine jam nut and (1)coarse jam nut.
Side of housing has 1/4-20 tapped hole for attaching ground strap.
Grounding screw not included.
Zinc and clear chromate plated.