Staff Answer
Oct 22, 2026 - 07:04 AM
Thank you for reaching out to Grand Brass Lamp Parts!
The Pull Chain On-Off Switch (SKU: SW109M) features a 1/8 IPS male threaded mounting section measuring approximately 10mm long.
A compatible 1/8 IPS female threaded tube or coupling may be used to extend the mounting section through a light fixture cover or shade. The appropriate extension will depend on the thickness of the cover and the length required.
Please note that the extension must provide sufficient clearance for the pull chain to operate freely without binding or interference.
If you need assistance selecting compatible components, please contact Sales@grandbrass.com with the required extension length and, if possible, photos of your fixture. One of our lighting experts may be able to assist you.
Grand Brass Lamp Parts, LLC