Hex Couplers also known as Coupling Nuts are designed to connect two pieces of male threaded objects together. The hex couplers are often used in balustrading or structural applications.
Hex Couplers also known as Coupling Nuts are designed to connect two pieces of male threaded objects together. The hex couplers are often used in balustrading or structural applications.
in 2 offers
The lowest price for Pinnacle Hardware M4 Galvanised Coupler - 8 Pack right now is $3.24 at Bunnings Warehouse, compared across 2 retailers.
The all-time low was $3.24 on 29 July 2025. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 10 May 2026.
Pinnacle Hardware M4 Galvanised Coupler - 8 Pack
Hex Couplers also known as Coupling Nuts are designed to connect two pieces of male threaded objects together. The hex couplers are often used in balustrading or structural applications.
Hex Couplers also known as Coupling Nuts are designed to connect two pieces of male threaded objects together. The hex couplers are often used in balustrading or structural applications.
Last updated at 10/05/2026 07:27:17
Pinnacle Hardware M4 Galvanised Coupler - 8 Pack
Delivery $55
Pinnacle Hardware M4 Galvanised Coupler - 8 Pack
Free next-day delivery
originally posted on bunnings.com.au
I had the opposite problem to the other reviewer - bought this thinking it was a 1/2" UNC coupler (13 TPI) but found it was actually a BSW thread (12TPI)... otherwise seems a decently sturdy piece of hardware for the price
originally posted on bunnings.com.au
Good product to use in areas where spanner use is limited
originally posted on bunnings.com.au
On the web site it statesZinc platedImperial thread 1/2"Thread count (TPI): 121 piece packbut the tag on the coupler states UNC wich is (TPI): 13.
Pinnacle Hardware M4 Galvanised Coupler - 8 Pack
Delivery $55
Pinnacle Hardware M4 Galvanised Coupler - 8 Pack
Free next-day delivery
I had the opposite problem to the other reviewer - bought this thinking it was a 1/2" UNC coupler (13 TPI) but found it was actually a BSW thread (12TPI)... otherwise seems a decently sturdy piece of hardware for the price
Good product to use in areas where spanner use is limited
On the web site it statesZinc platedImperial thread 1/2"Thread count (TPI): 121 piece packbut the tag on the coupler states UNC wich is (TPI): 13.
What can I say, it's a nut, it does the job.
good finish and correct size
M20 galvanised coupler nut👍
