(Note: Measurements are outside max. dimensions unless stated otherwise).
18th Century : Bun foot with fine knurled centre banding.
Diam. 20mm. (3/4")
Height 9.5mm. (3/8")
Diam. collar 14mm. (9/16")
The original came from a bracket clock.
It is recommended that if selecting screw thread option, a pilot hole is drilled and pre-cut with a steel screw of slightly smaller size before screwing in the casting to avoid shearing.