Grand Brass Lamp Parts, LLCStaff Answer
Oct 09, 2026 - 06:14 AM
No, this S-Cluster will not fit a 3/8in. threaded flange. The bottom stem has a 1/4 IPS male thread, which measures approximately 1/2in. outside diameter.
It requires a compatible 1/4 IPS female-threaded flange.
For a better understanding of lamp thread sizes and dimensions, please refer to our Thread Size Chart.
