Stainless Steel Hex Coupling Nut
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SS Coupling Nut

18-8 stainless steel hex coupling nuts are made from one of the following austenitic alloys: 303, 303Se, 304, XM7, all of which are characterized as having a chromium content of 17-19% and nickel content of 8-10%. Dimensional specifications are governed by ASME B18.2.2. There are no grade markings on 18-8 stainless hex coupling nuts. Coupling nuts, also known as extension nuts, are used for joining two male threads, usually threaded rods, in a variety of applications. 300 series stainless steel fasteners are commonly used in applications that require general atmospheric corrosion resistance, such as chemical and food processing equipment. Stainless steel has a higher corrosion resistance than carbon steel.

SS Coupling Nut
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Diameter Thread Pitch Width Across Flats Length Item # Availability Price Quantity UOM

1/4-20 STAINLESS STEEL HEX COUPLING NUT

$1.01483/EA
In Stock
Quantity Price
Quantity Price
1 $1.01483/ EA
1730 $0.95073/ EA
6900 $0.84668/ EA
31040 $0.56107/ EA

5/16-18 STAINLESS STEEL HEX COUPLING NUT

$1.21201/EA
In Stock
Quantity Price
Quantity Price
1 $1.21201/ EA
130 $1.13604/ EA
510 $1.01015/ EA
2260 $0.67313/ EA

3/8-16 STAINLESS STEEL HEX COUPLING NUT

$1.36853/EA
In Stock
Quantity Price
Quantity Price
1 $1.36853/ EA
120 $1.28412/ EA
470 $1.13941/ EA
2110 $0.76506/ EA

1/2-13 STAINLESS STEEL HEX COUPLING NUT

$3.96559/EA
In Stock
Quantity Price
Quantity Price
1 $3.96559/ EA
100 $3.73139/ EA
370 $3.2971/ EA
1660 $2.27154/ EA

5/8-11 STAINLESS STEEL HEX COUPLING NUT

$8.47923/EA
In Stock
Quantity Price
Quantity Price
1 $8.47923/ EA
60 $7.98657/ EA
220 $7.04711/ EA
960 $4.8927/ EA

3/4-10 STAINLESS STEEL HEX COUPLING NUT

$14.41884/EA
In Stock
Quantity Price
Quantity Price
1 $14.41884/ EA
40 $13.59115/ EA
140 $11.9891/ EA
630 $8.38889/ EA