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Sugg. Cotter Pin Dia.
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Body Material
Body Finish
Height
Grade
Thread
Class
Sugg. Cotter Pin Dia.
Slot Width
Slot Depth
Steel
Bare
7/32"
Grade 2
1/4"-20
N/A
1/16"
.070"
0.09"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1/4-20
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
17/64"
Grade 2
5/16"-18
N/A
5/64"
.090"
0.09"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 5/16-18
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
21/64"
Grade 2
3/8"-16
N/A
3/32"
.120"
0.13"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 3/8-16
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
3/8"
Grade 2
7/16"-14
N/A
3/32"
.120"
0.15"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 7/16-14
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
7/16"
Grade 2
1/2"-13
N/A
1/8"
.150"
0.15"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1/2-13
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
31/64"
Grade 2
9/16"-12
N/A
1/8"
.150"
0.18"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 9/16-12
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
35/64"
Grade 2
5/8"-11
N/A
5/32"
.180"
0.21"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 5/8-11
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
41/64"
Grade 2
3/4"-10
N/A
5/32"
.180"
0.23"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 3/4-10
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
3/4"
Grade 2
7/8"-9
N/A
5/32"
.180"
0.25"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 7/8-9
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
55/64"
Grade 2
1"-8
N/A
3/16"
.240"
0.28"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1-8
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
31/32"
Grade 2
1 1/8"-7
N/A
3/16"
.240"
0.36"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1-1/8-7
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
1 1/16"
Grade 2
1 1/4"-7
N/A
7/32"
.310"
0.36"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1-1/4-7
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
1 11/64"
Grade 2
1 3/8"-6
N/A
1/4"
.310"
0.39"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1-3/8-6
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
1 9/32"
Grade 2
1 1/2"-6
N/A
1/4"
.370"
0.42"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Coarse, 1-1/2-6
Thread Type: Coarse-Imperial
Thread Class: 2B
Steel
Bare
7/32"
Grade 2
1/4"-28
N/A
1/16"
.070"
0.09"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 1/4-28
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
17/64"
Grade 2
5/16"-24
N/A
5/64"
.090"
0.09"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 5/16-24
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
21/64"
Grade 2
3/8"-24
N/A
3/32"
.120"
0.13"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 3/8-24
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
3/8"
Grade 2
7/16"-20
N/A
3/32"
.120"
0.15"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 7/16-20
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
7/16"
Grade 2
1/2"-20
N/A
1/8"
.150"
0.15"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 1/2-20
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
31/64"
Grade 2
9/16"-18
N/A
1/8"
.150"
0.18"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 9/16-18
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
35/64"
Grade 2
5/8"-18
N/A
5/32"
.180"
0.21"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 5/8-18
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
41/64"
Grade 2
3/4"-16
N/A
5/32"
.180"
0.23"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 3/4-16
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
3/4"
Grade 2
7/8"-14
N/A
5/32"
.180"
0.25"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 7/8-14
Thread Type: Fine-Imperial
Thread Class: 2B
Steel
Bare
55/64"
Grade 2
1"-14
N/A
3/16"
.240"
0.28"
Nuts, Hexagon, Slotted (Castle Nuts), Imperial Fine, 1-14
Thread Type: Fine-Imperial
Thread Class: 2B