Best Slotted Nuts of 2026

Name: sourcing map M22x1.5mm Hex Slotted Nut Set
Brand: sourcing map

Corey Phillips

Last Updated: 5 Feb 2026

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Slotted nuts are a type of fastener commonly used in construction, engineering, and manufacturing. They are designed to be tightened or loosened with the use of a screwdriver or other flat-bladed tool, which is inserted into the slot on the top of the nut. Slotted nuts are particularly useful in applications where a high degree of torque is required, as they provide a secure and stable connection between two components. They are available in a range of sizes and materials to suit different requirements and are a reliable and cost-effective solution for a variety of industrial and mechanical applications.

At a Glance: Our Top Picks

#TOP 1

sourcing map M22x1.5mm Hex Slotted Nut Set

9.8

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#TOP 2

Sourcingmap 5pcs M12 Carbon Steel Castle Nut

9.7

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#TOP 3

SZXMDKH M6 Barrel Nuts for Furniture

9.5

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Top 4 Slotted Nuts

#TOP 1

sourcing map M22x1.5mm Hex Slotted Nut Set

sourcing map
a22030900ux0127
Black
M22x1.5mm

sourcing map M22x1.5mm Hexagon Slotted Nut, Grade 4.8 Carbon Steel Hex Castle Nuts, Black, 5Pcs

The sourcing map Hex Slotted Nuts are designed with a thread size of M22 and a pitch of 1.5mm, making them ideal for various fastening applications. With a width of 32mm and a height of 24mm, these nuts provide a robust solution for securing components. Made from high-quality carbon steel, they are resistant to rust and wear, ensuring durability over time. The slotted design allows for easy insertion of a cotter pin, enhancing security when used with drilled shank fasteners.

9.8

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What We Like

High hardness and durability
Rust and corrosion resistant
Easy cotter pin insertion
Suitable for various applications
Convenient size for standard fittings

#TOP 2

Sourcingmap 5pcs M12 Carbon Steel Castle Nut

Uxcell
a17101700ux0280
Black

Sourcingmap 5pcs M12x1.75mm Carbon Steel Grade 8 Hexagon Slotted Castle Nut Black

The Sourcingmap M12 Castle Nut is designed for durability and reliability. Made from medium carbon steel, this product ensures strength and longevity in various applications. Weighing just 75 grams, it is lightweight yet robust, making it easy for you to handle during installation. With dimensions of 18.5 x 18.5 x 13mm, it fits seamlessly into your projects. Its black oxide finish not only enhances its aesthetic appeal but also offers added protection against corrosion, ensuring it remains in good condition over time.

9.7

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What We Like

Durable carbon steel material
Lightweight design
Corrosion-resistant finish
Standardised dimensions

#TOP 3

SZXMDKH M6 Barrel Nuts for Furniture

SZXMDKH
SZXMDKHK00326
brass tone

30 Pack M6 Barrel Nuts Cross Dowels Slotted Nuts for Furniture Beds Crib Chairs

The SZXMDKH Barrel Nuts are designed for ease of use in furniture assembly. With a total length of 12 mm and an outer diameter of 10 mm, these nuts are perfectly sized for your needs. Made from high-quality carbon steel, they offer excellent durability and resistance to rust and corrosion, ensuring a long lifespan. Their compact size makes them convenient to store, and they work seamlessly with connector bolts to create strong right angle joints, ideal for assembling beds, cots, and flat-pack furniture.

9.5

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What We Like

Durable carbon steel material
Compact and easy to store
Perfect for furniture assembly
Strong right angle joints
30 pieces included

#TOP 4

sourcing map M24x3mm Hexagon Slotted Nut

sourcing map
a23032200ux0264
Gray or Silver
M24x3mm

sourcing map 1Pcs M24x3mm Hexagon Slotted Nut, Grade 8 Carbon Steel Hex Castle Nuts, Color Zinc

The sourcing map Hexagon Nut features a threaded design with a size of M24 and a 3mm pitch, providing a reliable fit for various applications. With a width of 1.42 inches and a height of 1.16 inches, this nut is made from durable carbon steel and has a colour zinc finish, ensuring resistance to rust and wear. The slots allow for easy insertion of a cotter pin, securing the nut effectively during operation. This product is ideal for industry use, particularly for securing front wheel bearings on trucks.

9.5

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What We Like

High hardness and durability
Rust and wear-resistant
Easy cotter pin insertion
Suitable for various applications

Frequently Asked Questions (FAQs)

1. What are slotted nuts used for?

Slotted nuts are used in applications where vibration or motion might undo the locknut. Both a castle nut and slotted nut look similar, and can often be used interchangeably because they have almost identical dimensions.

2. What is the difference between a castle nut and a slotted nut?

Castle Nuts The difference between a slotted nut and a castle nut is the latter has turret geometry on the top of the nut. The nut thicknesses are the same as a slotted nut. Like slotted nuts, castle nut applications are similar using steel pins and taper or split pins, to lock the nut into position after tightening.

3. What is a slotted hex nut?

Slotted Hex Nuts are hex nuts with slots protruding from the top, similar to castle nuts. To use a slotted nut, a hole is drilled through the threaded portion of a bolt or stud. ... The cotter pin locks the slotted nut into place, which eliminates the need for other locking-type fasteners.

4. What is a castle nut Why is it called castle nut?

A castellated nut, sometimes referred to as a castle 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. Castellated nuts are sometimes referred to incorrectly as castigated nuts.

Editor's Notes

During our slotted nut research, we found 78 slotted nut products and shortlisted 4 quality products. We collected and analyzed 1,755 customer reviews through our big data system to write the slotted nuts list. We found that most customers choose slotted nuts with an average price of £20.00.

The slotted nuts are available for purchase. We have researched hundreds of brands and picked the top brands of slotted nuts, including sourcing map, Uxcell, SZXMDKH.

Written by

Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.