Castle Nut

Listing ID #4866058

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A hex nut with opposed slots cut into the top, cylindrical portion, of the nut. The slots are on the end opposite the bearing surface and are equal in depth to the cylindrical length. The cylindrical portion diameter is slightly smaller than the hex widthThe slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. Commonly used in the automotive industry to secure front wheel bearings / wheel hubs to spindles on cars and trucks. Castle nuts are interchangeable
Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements: Carbon: .47% max Phosphorus: .12% max Sulfur: .23% maxRockwell C32 maximum
Supply Type Manufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

A castellated nut, also called a castle nut or slotted nut, is a nut with slots (notches) cut into one end.The name comes from the nut’s resemblance to the crenellated parapet of a medieval....

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Product Details

A castellated nut, also called a castle nut or slotted nut, is a nut with slots (notches) cut into one end.The name comes from the nut’s resemblance to the crenellated parapet of a medieval castle.

The bolt or axle has one or two holes drilled through its threaded end. The nut is torqued properly and then, if the slot is not aligned with the hole in the fastener, the nut is rotated back to the nearest slot. The nut is then secured with a cotter pin or safety wire.

Castellated nuts are used in low-torque applications, such as holding a wheel bearing in place

Castle Nuts Dimensions

Slotted Hex Castle Lock Nuts
Hex Castle Nuts - ANSI B18.2.2 - 1970

Nominal Size or Basic Major Thread Diameter		F			G		H			T			S		R	W	Runout of Bearing Surface FIR
		Width Across Flats			Width Across Corners		Thickness			Unslotted Thickness and Flat Height			Slot Width		Fillet Radius	Cylinder Diameter	Runout of Bearing Surface FIR
		Basic	Max	Min	Max	Min	Basic	Max	Min	Nom	Max	Min	Max	Min	+.010	Min	Max
1/4	.250	7/16	.438	.428	.505	.488	9/32	.288	.274	3/16	.20	.18	.10	.07	.094	.371	.015
5/16	.3125	1/2	.500	.489	.577	.557	21/64	.336	.320	15/64	.24	.22	.12	.09	.064	.425	.016
3/8	.3750	9/16	.562	.551	.650	.628	13/32	.415	.398	9/32	.29	.27	.15	.12	.094	.478	.017
7/16	.4375	11/16	.688	.675	.794	.768	29/64	.463	.444	19/64	.31	.29	.15	.12	.094	.582	.018
1/2	.5000	3/4	.750	.736	.866	.840	9/16	.573	.552	13/32	.42	.40	.18	.15	.125	.637	.019
9/16	.5625	7/8	.875	.861	1.010	.982	39/64	.621	.598	27/64	.43	.41	.18	.15	.156	.744	.020
5/8	.6250	15/16	.938	.922	1.083	1.051	23/32	.731	.706	1/2	.51	.49	.24	.18	.156	.797	.021
3/4	.7500	1-1/8	1.125	1.088	1.299	1.240	13/16	.827	.798	9/16	.57	.55	.24	.18	.188	.941	.023
7/8	.8750	1-5/16	1.312	1.269	1.516	1.447	29/32	.922	.890	21/32	.67	.64	.24	.18	.188	1.097	.025
1	1.0000	1-1/2	1.500	1.450	1.732	1.653	1	1.018	.982	23/32	.73	.70	.30	.24	.188	1.254	.027

Company Details

The K.M Steel India stocks a large inventory of fasteners for commercial, industrial, utility, and OEM installations. We have Fasteners such as screws, Grade A307 , Grade A194 Bolts, nuts, washers, and studs available in several grades and materials. Along with the standard fasteners we also stock B7 bolts & studs and stainless steel, nuts, Draw Bolts, bolts, and washers. We also carry a large inventory of mechanical anchors such as, drop-ins, wedge anchors, tapcons, lead, plastic, and hollow wall anchors.