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The Hillman Group 4375 coupling nut is a zinc-plated, alloy steel fastener featuring a 3/8-24 fine thread and 1 1/8” length. Designed for joining threaded rods, its hexagonal shape and corrosion-resistant finish provide durable, precise connections ideal for professional-grade assemblies.
| Material | Alloy Steel |
| Fastener Type | Coupling |
| Thread Size | 3/8"-24 |
| Exterior Finish | Zinc |
| Color | Zinc |
| Metal Type | Alloy Steel |
| Finish Type | Zinc Plated |
| Brand | Hillman |
| Item Weight | 0.01 Ounces |
| Thread Type | Unified National |
| Inside Thread Size | 3/8 |
| Thread Style | Right Hand |
| Thread Coverage | Fully Threaded |
| Thread Class | Class 2A |
| Size | 3/8"-24 x 1-1/8" |
| Item Diameter | 0.5 Inches |
| Number of Pieces | 5 |
| UPC | 008236416015 |
| Global Trade Identification Number | 00008236416015 |
| Manufacturer | The Hillman Group |
| Part Number | 4375 |
| Item Weight | 0.01 ounces |
| Item model number | 4375 |
| Is Discontinued By Manufacturer | No |
| Finish | Zinc Plated |
| Shape | Hexagonal |
| Item Package Quantity | 1 |
| Head Style | Hexagonal |
| Cutting Diameter | 0.5 Inches |
| Measurement System | Inch |
| Accessory Connection Type | Hex |
| Certification | An, As |
| Special Features | Assortment |
| Usage | Threaded Rod |
| Batteries Included? | No |
| Batteries Required? | No |
E**E
Over Priced.
Appearance and functions well and it better because it's over priced.
T**9
Great for ham radio antenna
I've been looking for larger 3/8-24 coupling nuts to replace some on a ham radio hamstick dipole mount. The ones that came with the mount were quite a bit shorter, and I didn't feel confident in their ability. These coupling nuts are much better - high quality and long enough to fit all the threads. These things are actually fairly hard to find; none of my loca hardware stores carried them (including the big orange and blue stores). In any case, if you're looking for these for ham radio, these ones will work a treat.
R**T
I’m Nuts about these
Work as promised.
J**D
Works
Works
L**R
Using on remodeled car
Good
S**D
Five Stars
Now have a supply for planned future projects.
R**G
Very good
Very good
C**Z
they are not 3/8 - 24
Junk
Trustpilot
3 weeks ago
5 days ago