In article ,
Grant Erwin wrote:

Most torches I've owned have 9/16-18 threads for connection to the welding
hose
(RH for oxygen, LH for fuel). I recently bought a used torch which had little
red plastic caps over the exposed 9/16" threads. I thought that was a great
idea, protecting the threads. Anyone know where I can buy these little
plastic
caps designed to fit over torch threads?

GWE
Seattle area

Just buy extra nuts at a welding supply store.
Screw them onto the exposed threads.

--
Welding Instructor - South Seattle Comm. Coll.
- Divers Institute of Technology
CWI/CWE
WABO Examiner