Stainless Steel Castle Nuts

Slotted Nuts, also called Castellated Nuts, in 304 Stainless Steel

Used with a cotter pin
Notched on one side
Torque the nut then aligns with the closest hole
Used with a bolt or axle that has a hole in it

A Castle nut, castellated nut, or slotted nut is normally used with a Cotter Pin to create a locking fastener assembly that cannot be loosened due to accidental vibration. It is common to see this type of nut on vehicles and machinery where vibration is frequent.

Nut Sizes	Width Across Flats	Overall Height
#10	0.375" REF	0.248" REF
1/4"	0.434" REF	0.281" REF
5/16"	0.499" REF	0.326" REF
3/8"	0.562" REF	0.410" REF
7/16"	0.686" REF	0.456" REF
1/2"	0.745" REF	0.569" REF
5/8"	0.934" REF	0.724" REF
3/4"	1.125" REF	0.820" REF
7/8"	1.126" REF	0.814" REF
1"	1.498" REF	1.005" REF

Select Products Below See Product Specifications See Product Video

NA = "Not Sold In Single Quantity"

Select Package Quantity

Castle Nuts 304 Stainless Steel #10-24

SKU #129002-002

1
$4.24 (4.24/ea)

10
$42.10 (4.21/ea)

25
$104.75 (4.19/ea)

100
$417.00 (4.17/ea)

1000
$4,160.00 (4.16/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - #10-32

SKU #129002

1
$3.74 (3.74/ea)

10
$32.90 (3.29/ea)

25
$74.75 (2.99/ea)

100
$291.00 (2.91/ea)

1000
$2,900.00 (2.9/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 1/4-20

SKU #129008

1
$3.14 (3.14/ea)

10
$29.90 (2.99/ea)

25
$72.50 (2.9/ea)

100
$233.00 (2.33/ea)

1000
$2,150.00 (2.15/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 1/4-28

SKU #129014

1
$3.55 (3.55/ea)

10
$35.00 (3.5/ea)

25
$86.25 (3.45/ea)

100
$273.00 (2.73/ea)

1000
$2,510.00 (2.51/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel 5/16"-18

SKU #129020

1
$4.29 (4.29/ea)

10
$39.90 (3.99/ea)

25
$97.50 (3.9/ea)

100
$315.00 (3.15/ea)

1000
$2,900.00 (2.9/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel 5/16"-24

SKU #129032

1
$4.36 (4.36/ea)

10
$43.00 (4.3/ea)

25
$106.25 (4.25/ea)

100
$334.00 (3.34/ea)

1000
$3,070.00 (3.07/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 3/8-16

SKU #129026

1
$5.42 (5.42/ea)

10
$51.40 (5.14/ea)

25
$127.50 (5.1/ea)

100
$428.00 (4.28/ea)

1000
$3,940.00 (3.94/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 3/8-24

SKU #129038

1
$5.85 (5.85/ea)

10
$56.80 (5.68/ea)

25
$140.00 (5.6/ea)

100
$445.00 (4.45/ea)

1000
$4,100.00 (4.1/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 7/16-20

SKU #129043-02

1
$8.68 (8.68/ea)

10
$84.00 (8.4/ea)

25
$205.00 (8.2/ea)

100
$647.00 (6.47/ea)

1000
$5,950.00 (5.95/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 1/2-13

SKU #129044

1
$6.94 (6.94/ea)

10
$63.00 (6.3/ea)

25
$150.00 (6/ea)

100
$481.00 (4.81/ea)

1000
$4,420.00 (4.42/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 1/2-20

SKU #129050

1
$7.96 (7.96/ea)

10
$77.30 (7.73/ea)

25
$177.50 (7.1/ea)

100
$567.00 (5.67/ea)

1000
$5,300.00 (5.3/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 5/8-11

SKU #129056

1
$14.29 (14.29/ea)

10
$128.90 (12.89/ea)

25
$302.50 (12.1/ea)

100
$1,090.00 (10.9/ea)

1000
$10,040.00 (10.04/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel 5/8"-18

SKU #129062

1
$15.59 (15.59/ea)

10
$139.80 (13.98/ea)

25
$327.50 (13.1/ea)

100
$1,180.00 (11.8/ea)

1000
$10,880.00 (10.88/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 3/4-10

SKU #129068

1
$21.66 (21.66/ea)

10
$171.60 (17.16/ea)

25
$405.00 (16.2/ea)

100
$1,456.00 (14.56/ea)

1000
$13,400.00 (13.4/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 3/4-16

SKU #129074

1
$23.82 (23.82/ea)

10
$187.10 (18.71/ea)

25
$432.50 (17.3/ea)

100
$1,590.00 (15.9/ea)

1000
$14,630.00 (14.63/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 7/8-9

SKU #129080

1
$32.47 (32.47/ea)

10
$274.10 (27.41/ea)

25
$625.00 (25/ea)

100
$2,372.00 (23.72/ea)

1000
$21,820.00 (21.82/ea)

Subtotal: $0.00 /

Castle Nuts 304 Stainless Steel - 1-8

SKU #129086

1
$37.53 (37.53/ea)

10
$374.80 (37.48/ea)

25
$650.00 (26/ea)

100
$2,372.00 (23.72/ea)

1000
$21,820.00 (21.82/ea)

Subtotal: $0.00 /

Frequently Used With

MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz. 1050-106

Our Price: $18.11

Subtotal: $0.00 /

MRO Solution 1000 - Food Grade Anti-Seize Lubricant - 8 oz. 1050-104

Our Price: $21.74

Subtotal: $0.00 /

Stainless Steel Castle Nuts

Slotted Nuts, also called Castellated Nuts, in 304 Stainless Steel

Frequently Used With

Product Specifications

Product Video

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