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5 Best Locknuts of 2025

Last Updated - 2025/07/22

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Bolt Dropper

Lock Nut 1/4"-20 Inch (100 Pieces) Stainless Steel Finish Hex, by Bolt Dropper, 304 18-8 Stainless with Nylon Insert.

Bolt Dropper

CA$25.00

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Main highlights
- 【Locknuts That You Can Depend On】Our hex lock nuts are very strong and are great for both indoor and outdoor use. This stainless is superior to regular steel and provides excellent rust resistance. With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque.
- 【LIFETIME GUARANTEE】We are so confident that our product is the best on the market that we offer a No Hassle Lifetime Guarantee.
- 【High Quality Stainless】These Lock Nuts are 100% 18-8 (304) Stainless Steel which is one of the highest forms of corrosion resistant metals, making it last longer than other Nuts on the market today.
- 【Great To Keep Around】Bolt Dropper hex nuts are great to have around for use in wood and wet environments. Bolt Dropper Hex Nuts are the highest quality available on the market and we stand by our claim 100%. They are strong, corrosion resistant and will support all of your projects.
- 【Dimensions】Diameter: 1/4"-20 | Threads Per Inch: 20 | Thread Type: Coarse (standard) | Quantity: 100 pcs | Material: 18-8 (304) Stainless Steel.
CA$25.00
2
Best Value
18% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

McGard
18% Off

MCGARD 24157 Chrome Cone Seat Wheel Locks (M12 x 1.5 Thread Size) - 4 Locks / 1 Key

McGard

CA$32.75

CA$40.06
(18% Off)

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Main highlights
- McGard keys will not match OEM locks installed by the factory or dealership. Keys are not interchangeable with other McGard wheel locks. If ordering multiple lock sets, the keys will not match between sets
- Manufactured in the USA to meet or exceed OEM standards. Please use a torque wrench to prevent damage to the finish. Use of impact tool not recommended
- M12x1.5 thread with 60 degree tapered cone seat; 19MM and 21MM Dual Hex; 1.28 overall length -- you must confirm proper fitment for your vehicle by using the Amazon Confirmed Fit tool or consulting our website
- Kit includes wheel locks, unique key tool, and lock pattern ID card. Due to the unique key patterns, the pattern shown in images and on the outer packaging will differ from the pattern on the locks you receive
- Every lock is through-hardened and tempered for strength and plated with several layers of nickel and one layer of microporous chrome for superior protection against rust
CA$32.75
CA$40.06 (18% Off)
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Swpeet

100Pcs 304 Stainless Steel Metric Lock Nut Assortment Kit Perfect for Lock Washers, Nylon Insert Locknut M3 M4 M5 M6 M8 M10 M12

Swpeet

CA$14.99

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Main highlights
- ☛ WHAT YOU GET ------ In this kit, You will get 100Pcs 304 Stainless Steel Metric Lock Nut Assortment Kit. It consists of M3 ( 25Pcs ), M4 ( 25Pcs ), M5 (15Pcs), M6 ( 15Pcs ), M8 (10Pcs), M10 ( 5Pcs ) and M12 ( 5Pcs ). Allocate more of the commonly used locking nuts.
- ☛ NYLON COLLAR ------ These lock nut manufactured with industrial strength, which can replace locking washers, prevent bolts from being exposed and provide better safety and firm fixation. Compared with locking washer, it has better performance because it is made of non-corrosive material.
- ☛ MULTIFUNCTIONAL ASSEMNLY KIT ------ Advanced 304 stainless steel nylon locking nut, 7 common sizes, general, convenient, easy to use, very suitable for professionals and DIY users. This suite is one of the few products on the market. It has high quality and better quantity. It is an economical and efficient choice.
- ☛ HIGH QUALITY ------ Have strong anti-rotation ability, which can prevent the locking nut from weakening and loosening under vibration and torque, thus reducing the clamping strength. Guaranteed intact, unswerving, almost indestructible.
- ☛ EASY TO STOREAGE ------ The rugged plastic box serves as a suitcase, allowing users to organize locking nuts in a neat manner according to size. It can also be stored in a garage, workbench or worksite as a convenient storage space. The transparency of the box allows users to check the quantity and inventory without opening the box.
CA$14.99
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

NEIKO

NEIKO 50432A Hex Nut Assortment Set | 150 Pc Nylon Locking Nuts | A3 Steel Hex Assorted Hardware Kit #10 & SAE | Metal Screw Nut for Bolts | Friction Lock Nut

NEIKO

CA$23.29

More Details
Main highlights
- SECURE FIT: Assortment of 150 standard fastening nylon lock nuts in 6 common SAE sizes for convenient all-purpose bolts used most ideal for professionals and DIYers to prevent loosening due to vibration and rotation.
- QUALITY: High quality polymer-insert hex lock nuts resist turning, preventing nut from loosening under vibration and torque. Constructed of high hardness stainless steel to prevent warping and deforming.
- HARDWARE ORGANIZER: Extra sturdy compartmentalized plastic carrying case allows neat organization and convenient storage for any garage, work bench, toolbox, or on the go job sites. Included sizes: #10x24, 1/4"x20, 1/4"x28, 5/16"x18, 3/8"x16, 1/2"x13.
- DURABLE: Self-locking nut with nylon collar replaces lock washers preventing unintentional moving bolts from coming out for a more secure and durable hold in furniture craftsmanship, construction, or automotive uses.
- APPLICATION: A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, retaining nuts, prevailing torque nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread.
CA$23.29
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Vifmy

Vifmy 110 Pack 1/4"-20 Inch Lock Nuts,304 (A2-70) Stainless Steel Nylon Insert Locknuts,Standard Inch Thread Nylock Nuts for Bolts

Vifmy

CA$17.99

More Details
Main highlights
- 【Wide Application】Common uses for inch hardware nuts include securing instrument and equipment components, linking pipes and structural elements.Suitable for use or maintenance in a wide range of applications such as furniture decoration, automotive repair, the mechanical industry and small repairsaround shops, construction, etc.
- 【Package Content】Set of 35 piece imperial 304 (18-8) stainless nylon insert lock nuts.
- 【Nylon Insert Locknut】1/4"-20 is standard inch threaded nylon locknuts have reliable anti-loosening performance, so that it and the bolt threads to form a close fit, and in the role of the elasticity of the nylon friction resistance, in order to achieve the purpose of anti-loosening. Assembly torque is more stable, anti-loosening is very reliable, can be used in shock vibration occasions.
- 【Convenient storage】Sae locknuts are individually stowed by type in an easy to carry clear case.Easy to store and use,so that the lock nuts will not be lost or mixed up during use.
- 【304 Stainless Steel Lock Nut】Nylon insert Lock nut is made of high-quality 304(18-8)stainless steel, rust-proof, corrosion resistance, sturdy, will not twist or deform, and has a long service life.With the spiral pattern is clear,the polishing process, the surface is smooth, no worry about scratching your hands.
CA$17.99

5 Best Locknuts of 2025

Lock Nut 1/4"-20 Inch (100 Pieces) Stainless Steel Finish Hex, by Bolt Dropper, 304 18-8 Stainless with Nylon Insert.

MCGARD 24157 Chrome Cone Seat Wheel Locks (M12 x 1.5 Thread Size) - 4 Locks / 1 Key

100Pcs 304 Stainless Steel Metric Lock Nut Assortment Kit Perfect for Lock Washers, Nylon Insert Locknut M3 M4 M5 M6 M8 M10 M12

NEIKO 50432A Hex Nut Assortment Set | 150 Pc Nylon Locking Nuts | A3 Steel Hex Assorted Hardware Kit #10 & SAE | Metal Screw Nut for Bolts | Friction Lock Nut

Vifmy 110 Pack 1/4"-20 Inch Lock Nuts,304 (A2-70) Stainless Steel Nylon Insert Locknuts,Standard Inch Thread Nylock Nuts for Bolts

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