Replace waterheater drain plug ?
This one looks kinda chewed up,, I checked the hardware and they don’t have a plastic one Ebay ?? Are they all the same thread ?? Would you put a little silicone grease or plumbers grease on it when...
Forum Discussion
luberhill wrote:
These are 1/2” ?? They take a 15/16 wrench I know
1/2" NPT is the thread size and structure (1/2" national pipe thread). 15/16" is the wrench size for the hex head. Similarly, a standard 5/16-18 bolt requires a 1/2" wrench; the 5/16" is the thread diameter (and it has 18 threads per inch).
