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5/16"-18 UNC Threads
Screws in like cutting through butter!
- 5/16"-18
- UNC Threads
- Accurate Tapping
UPVONT Hex Coupling Nuts
Rod Coupling Nuts, Ideal for Threaded Rods & Studs
Ideal for joining two shorter threaded rods & studs into one, our hex coupling nuts are versatile and well-suited for tasks like installing ceiling-mounted industrial pipes and equipment, lighting fixtures, and leveling bench legs, among many other applications.
Share your unique uses with us!
- Precise Threads
- Longer Length
- Zinc Plating
- Takes in both ends
Adhering to ANSI Standards
Precise Threads: 5/16"-18
Width Across Flats: 1/2"
Longer Length: 1.75-inch
Show Us How You Get Creative
Ronald C.
2025-09-05 10:04:07
Great heavy duty coupler nuts, Good length.
Kleekai22
2025-08-18 17:03:55
When we couldnรขโฌโขt find any more of these on island, these saved the day. We are using these and a threading rod to attach framing to our Quonset hut.
Don
2025-08-01 11:41:21
Overpriced but in a pinch they'll do
Micah
2025-05-29 10:01:26
These coupler nuts are heavy-duty. They worked great with threaded rods. They are easy to tighten with a wrench, and they make a secure connection. I recommend a little loc-tite to prevent any loosening.
Alex
2025-05-03 15:16:42
When I buy these locally they always have the outside hex size one wrench size smaller than a normal nut. I'm assuming that it's so that one of the two wrenches doesn't make contact with both the coupling nut and the jamb nut. Rarely is that an issue for me. I would much rather have it the same size so I can use a larger wrench. Other than that these are just like any other coupling nut.
R. Moheban
2025-04-02 16:49:13
Very good coupling nuts. Quality looks very good and consistent. The current price of 80 cents each when buying 10 seems very reasonable. The zinc coating adds some corrosion resistance.
SoManyBooks
2025-01-18 13:24:24
I buy a lot of fasteners and hardware for various projects, and use coupling nuts all the time. I am very impressed by the quality of these. They are heavy duty and seem substantial enough to hold up in any job I may used them in.
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