Coupling Nut Hot Dipped Galvanized

Hot Dip Galvanized Coupling Nuts

Rod Coupling Nut, or Extension Nut, in Hot Dip Galvanized Steel


  • Join two male threads
  • Commonly used with threaded rod
  • Also known as Extension Nuts
  • Available in reducer versions to connect two different sizes
  • Make longer rod assemblies from shorter lengths
  • Fine or coarse thread
  • Due to the finishing process for Hot Dip Galvanized fasteners, it is recommended to only use Hot Dip Galvanized fasteners with Hot Dip Galvanized fasteners and not mix metals. This can create threading and durability issues.

Nut Sizes Flats Length
1/4"-20 7/16" 1-3/4"
5/16"-18 1/2" 1-3/4"
3/8"-16 9/16" 1-3/4"
7/16"-14 5/8" 1-3/4"
1/2"-13 11/16" 1-3/4"
5/8"-11 13/16" 2-1/8"
3/4"-10 1" 2-1/4"
7/8"-9 1-1/4" 2-1/2"
1"-8 1-3/8" 2-3/4"
1"-8 1-1/4" 2-1/2"
1-1/8"-7 1-1/2" 3"
1-1/4"-7 1-5/8" 3"
1-1/2"-6 2" 4"
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Product Specifications
Color
Gray
Corrosion Resistant
Yes
Drive Style
External Hex
Finish
Hot Dip Galvanized
Grade
A563-A Grade A
Material
Steel
Product Type
Coupling Nut
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances