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
1 

Item #

Thread Size (in.)

Width Across Flats (in.)

Length (in.)

Availability

List Price

10610 N/A 3/8"-16 N/A 11/16 N/A 1-1/8 N/A Stock Item $2.10
10615 N/A 1/2"-13 N/A 7/8 N/A 1-3/4 N/A Stock Item $2.70
10620 N/A 5/8"-11 N/A 1-1/16 N/A 2-1/8 N/A Stock Item $3.90
10625 N/A 3/4"-10 N/A 1-1/4 N/A 2-1/4 N/A Stock Item $5.50
10630 N/A 7/8"-9 N/A 1-7/16 N/A 2-5/8 N/A Stock Item $12.30
10635 N/A 1"-8 N/A 1-5/8 N/A 3 N/A Stock Item $12.80
10645 N/A 1-1/4"-7 N/A 2 N/A 3-3/4 N/A Stock Item $24.50
Unit of Measure
1