Mounting Type: Single-point (one or two mounting screws depending on design).
Threading: Standard #12-24 (7/32" diameter).
Materials: Commonly Solid Brass, Chrome plating, or Black Nickel.
Components: Often include gaskets.
Dimensions: Common single-ended tube lug lengths include 1", 1-1/4", 1-1/2", and 1-9/16"