George H. Seltzer & Co.
George H. Seltzer & Co.
P.O.Box 26, 103 Ridley Avenue
Folsom, PA 19033-0026
Phone: 800-445-4101 - 610-532-2322 • Fax: 610-532-3024
E-mail: zip@zipbolts.com
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Coupling Nuts are hexagonal shaped nuts with an extended body usually used to couple two studs together (also known as Extension Nuts).

-Coupling Nuts/Extension Nuts are machined from 12L14 cold finished hex bar stock.
-Used as a coupling nut with studs to lengthen bolts.
-Extra charge for case hardening.
Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
Unit of Measure
Items Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
10610
Coupling Nuts - 3/8"-16 thread x 1-1/8" length - ZIP Brand
List Price $2.10
 Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
10615
Coupling Nuts - 1/2"-13 thread x 1-3/4" length - ZIP Brand
List Price $2.70
 Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
10620
Coupling Nuts - 5/8"-11 thread x 2-1/8" length - ZIP Brand
List Price $3.90
 Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
10625
Coupling Nuts - 3/4"-10 thread x 2-1/4" length - ZIP Brand
List Price $5.50
 Coupling Nuts (Extension Nuts) - ZIP Brand (inch sizes)
10630
Coupling Nuts - 7/8"-9 thread x 2-5/8" length - ZIP Brand
List Price $12.30
Thread Size (in.) N/A 3/8"-16 N/A 1/2"-13 N/A 5/8"-11 N/A 3/4"-10 N/A 7/8"-9
Width Across Flats (in.) N/A 11/16 N/A 7/8 N/A 1-1/16 N/A 1-1/4 N/A 1-7/16
Length (in.) N/A 1-1/8 N/A 1-3/4 N/A 2-1/8 N/A 2-1/4 N/A 2-5/8
Availability N/A Stock Item