Rod Coupling Nuts
Need to extend threaded rod or join studs without a weak link? Kimball Midwest's stock of rod coupling nuts give you full thread engagement for tight, straight connections in hangers, bracing and repairs. Go Grade 8 when you need serious clamp, zinc plated carbon steel for everyday corrosion resistance or 18-8 and 316 stainless for wet and washdown areas. Fine thread helps with adjustment.
53 results
Zinc Plated Coupling Nuts - Coarse Thread (USS)
Hexagonal coupling nuts made from carbon steel with a zinc-plated finish and coarse USS threads. Available in a range of diameters and lengths; countersunk options with double chamfer on larger sizes. Zinc plating helps resist corrosion and provides durable thread engagement.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
1/4"
|
7/8"
|
1/4"-20
|
Coarse
|
3/8"
|
25
|
347404
|
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|
|
Package Weight: 0.5 lbs
|
|||||||
|
5/16"
|
1-1/8"
|
5/16"-18
|
Coarse
|
1/2"
|
10
|
347405
|
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|
|
Package Weight: 0.5 lbs
|
|||||||
|
3/8"
|
1-1/8"
|
3/8"-16
|
Coarse
|
1/2"
|
10
|
347406
|
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|
|
Package Weight: 0.4 lbs
|
|||||||
|
3/8"
|
1-3/4"
|
3/8"-16
|
Coarse
|
9/16"
|
10
|
347106
|
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|
|
Package Weight: 0.9 lbs
|
|||||||
|
7/16"
|
1-3/4"
|
7/16"-14
|
Coarse
|
5/8"
|
10
|
347407
|
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|
|
Package Weight: 1 lbs
|
|||||||
|
1/2"
|
1-3/4"
|
1/2"-13
|
Coarse
|
11/16"
|
10
|
347408
|
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|
|
Package Weight: 1.1 lbs
|
|||||||
|
5/8"
|
2-1/8"
|
5/8"-11
|
Coarse
|
13/16"
|
5
|
347410
|
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|
|
Package Weight: 0.9 lbs
|
|||||||
|
3/4"
|
2-1/4"
|
3/4"-10
|
Coarse
|
1"
|
5
|
347412
|
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|
|
Package Weight: 1.5 lbs
|
|||||||
|
7/8"
|
2-1/2"
|
7/8"-9
|
Coarse
|
1-1/4"
|
5
|
347414
|
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|
|
Package Weight: 2.8 lbs
|
|||||||
|
1"
|
2-3/4"
|
1"-8
|
Coarse
|
1-3/8"
|
5
|
347416
|
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|
|
Package Weight: 3.6 lbs
|
|||||||
|
1-1/8"
|
3"
|
1-1/8"-7
|
Coarse
|
1-1/2"
|
5
|
347418
|
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|
|
Package Weight: 4.5 lbs
|
|||||||
|
1-1/4"
|
3-3/4"
|
1-1/4"-7
|
Coarse
|
1-7/8"
|
5
|
347420
|
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|
|
Package Weight: 10.1 lbs
|
|||||||
Grade 8 Coupling Nuts - Coarse Thread (USS)
Grade 8 coupling nuts for coarse USS threaded rod, manufactured to Grade 8 strength with a 150,000 psi proof load. Plain finish hexagonal coupling nuts with coarse threads provide high-strength joining of threaded rod and help maintain alignment in assemblies.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
1/4"
|
7/8"
|
1/4"-20
|
Coarse
|
1/2"
|
1
|
340504
|
Log in to view price
|
|
Package Weight: 0.1 lbs
|
|||||||
|
3/8"
|
1-3/4"
|
3/8"-16
|
Coarse
|
5/8"
|
1
|
340506
|
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|
|
Package Weight: 0.1 lbs
|
|||||||
|
1/2"
|
1-3/4"
|
1/2"-13
|
Coarse
|
3/4"
|
1
|
340508
|
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|
|
Package Weight: 0.2 lbs
|
|||||||
|
5/8"
|
2-1/8"
|
5/8"-11
|
Coarse
|
15/16"
|
1
|
340510
|
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|
|
Package Weight: 0.3 lbs
|
|||||||
|
3/4"
|
2-1/4"
|
3/4"-10
|
Coarse
|
1-1/8"
|
1
|
340512
|
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|
|
Package Weight: 0.5 lbs
|
|||||||
|
7/8"
|
2-1/2"
|
7/8"-9
|
Coarse
|
1-5/16"
|
1
|
340514
|
Log in to view price
|
|
Package Weight: 0.7 lbs
|
|||||||
|
1"
|
2-3/4"
|
1"-8
|
Coarse
|
1-1/2"
|
1
|
340516
|
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|
|
Package Weight: 1 lbs
|
|||||||
Rod Coupling Nuts - Fine Thread (SAE)
Rod coupling nuts in fine SAE threads constructed from carbon steel with a zinc-plated finish and double-chamfered, double-countersunk ends. Countersunk head style with fine pitch threads provides aligned, secure rod joining and resists corrosion for general fastening applications.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
1/4"
|
7/8"
|
1/4"-28
|
Fine
|
3/8"
|
10
|
348304
|
Log in to view price
|
|
Package Weight: 0.2 lbs
|
|||||||
|
5/16"
|
7/8"
|
5/16"-24
|
Fine
|
7/16"
|
10
|
348305
|
Log in to view price
|
|
Package Weight: 0.2 lbs
|
|||||||
|
3/8"
|
1-1/8"
|
3/8"-24
|
Fine
|
1/2"
|
10
|
348306
|
Log in to view price
|
|
Package Weight: 0.3 lbs
|
|||||||
|
7/16"
|
1-1/4"
|
7/16"-20
|
Fine
|
9/16"
|
10
|
348307
|
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|
|
Package Weight: 0.4 lbs
|
|||||||
|
1/2"
|
1-1/4"
|
1/2"-20
|
Fine
|
5/8"
|
10
|
348308
|
Log in to view price
|
|
|
|||||||
|
5/8"
|
2-1/8"
|
5/8"-18
|
Fine
|
13/16"
|
5
|
348310
|
Log in to view price
|
|
|
|||||||
|
3/4"
|
2-1/4"
|
3/4"-16
|
Fine
|
1"
|
5
|
348312
|
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|
|
|
|||||||
|
7/8"
|
2-1/2"
|
3/32"-14
|
Fine
|
1-1/4"
|
5
|
348314
|
Log in to view price
|
|
|
|||||||
|
1"
|
2-3/4"
|
1"-14
|
Fine
|
1-3/8"
|
5
|
348316
|
Log in to view price
|
|
|
|||||||
Class 6 Rod Coupling Nuts - Coarse Thread
Class 6 rod coupling nuts with coarse metric threads and zinc plating. Designed to join grade 4.6 threaded rod per DIN 6334, available in multiple metric sizes and lengths. Zinc finish resists corrosion and provides reliable thread engagement for assemblies.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
M4
|
12 mm
|
M4 x 0.7
|
Coarse
|
8 mm
|
25
|
466804
|
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|
|
Package Weight: 0.2 lbs
|
|||||||
|
M5
|
15 mm
|
M5 x 0.8
|
Coarse
|
8 mm
|
10
|
466805
|
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|
|
Package Weight: 0.1 lbs
|
|||||||
|
M6
|
18 mm
|
M6 x 1.0
|
Coarse
|
10 mm
|
10
|
466806
|
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|
|
Package Weight: 0.2 lbs
|
|||||||
|
M8
|
24 mm
|
M8 x 1.25
|
Coarse
|
24 mm
|
10
|
466808
|
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|
|
Package Weight: 0.4 lbs
|
|||||||
|
M10
|
30 mm
|
M10 x 1.5
|
Coarse
|
17 mm
|
10
|
466810
|
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|
|
Package Weight: 0.9 lbs
|
|||||||
|
M12
|
36 mm
|
M12 x 1.75
|
Coarse
|
19 mm
|
10
|
4668112
|
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|
|
Package Weight: 1.3 lbs
|
|||||||
|
M14
|
42 mm
|
M14 x 2.0
|
Coarse
|
22 mm
|
5
|
466814
|
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|
|
Package Weight: 1 lbs
|
|||||||
|
M16
|
48 mm
|
M16 x 2.0
|
Coarse
|
24 mm
|
5
|
466816
|
Log in to view price
|
|
Package Weight: 1.3 lbs
|
|||||||
|
M20
|
60 mm
|
M20 x 2.5
|
Coarse
|
30 mm
|
5
|
466820
|
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|
|
Package Weight: 2.5 lbs
|
|||||||
18-8 Stainless Steel Coupling Nuts - Coarse Thread (USS)
Coupling nuts manufactured from 18-8 and 316 stainless steel, offered in coarse and fine threads to join threaded rod or extend assemblies. Durable corrosion resistance helps maintain connections in general fastening applications.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
#10
|
3/4"
|
#10-24
|
Coarse
|
3/8"
|
10
|
332310
|
Log in to view price
|
|
#10
|
3/4"
|
#10-32
|
Fine
|
3/8"
|
10
|
332311
|
Log in to view price
|
|
1/4"
|
7/8"
|
1/4"-20
|
Coarse
|
3/8"
|
2
|
3332340
|
Log in to view price
|
|
1/4"
|
7/8"
|
1/4"-20
|
Coarse
|
3/8"
|
10
|
332340
|
Log in to view price
|
|
5/16"
|
7/8"
|
5/16"-18
|
Coarse
|
1/2"
|
10
|
332350
|
Log in to view price
|
|
3/8"
|
1-1/8"
|
3/8"-16
|
Coarse
|
1/2"
|
2
|
3332360
|
Log in to view price
|
|
3/8"
|
1-1/8"
|
3/8"-16
|
Coarse
|
1/2"
|
10
|
332360
|
Log in to view price
|
|
1/2"
|
1-1/4"
|
1/2"-13
|
Coarse
|
5/8"
|
5
|
332380
|
Log in to view price
|
|
5/8"
|
2-1/8"
|
5/8"-11
|
Coarse
|
13/16"
|
2
|
332400
|
Log in to view price
|
|
3/4"
|
2-1/4"
|
3/4"-10
|
Coarse
|
1"
|
1
|
3332412
|
Log in to view price
|
|
Package Weight: 0.3 lbs
|
|||||||
|
3/4"
|
2-1/4"
|
3/4"-10
|
Coarse
|
1"
|
2
|
332412
|
Log in to view price
|
|
7/8"
|
2-1/2"
|
7/8"-9
|
Coarse
|
1-1/4"
|
1
|
3332414
|
Log in to view price
|
|
Package Weight: 0.6 lbs
|
|||||||
316 Stainless Steel Coupling Nuts - Coarse Thread (USS)
316 stainless steel coupling nuts with USS coarse threads in multiple diameters. Hex exterior provides wrench engagement and full-length internal threads join threaded rod securely. Corrosion-resistant 316 material improves durability in marine or outdoor assemblies.
| Diameter | Length | Thread Size | Thread Type | Width Across Flats | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|---|
|
1/2"
|
1-3/4"
|
1/2"-13
|
Coarse
|
11/16"
|
1
|
3332380
|
Log in to view price
|
|
Package Weight: 0.1 lbs
|
|||||||
|
5/8"
|
2-1/8"
|
5/8"-11
|
Coarse
|
13/16"
|
1
|
3332400
|
Log in to view price
|
|
Package Weight: 0.2 lbs
|
|||||||
|
1"
|
2-3/4"
|
1"-8
|
Coarse
|
1-3/8"
|
1
|
3332416
|
Log in to view price
|
|
Package Weight: 0.5 lbs
|
|||||||
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Pkg Qty: 10
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