11 best locknuts stainless for 2022

Finding your suitable locknuts stainless is not easy. You may need consider between hundred or thousand products from many store. In this article, we make a short list of the best locknuts stainless including detail information and customer reviews. Let’s find out which is your favorite one.

Product Features Editor's score Go to site
The Hillman Group 829720 1/4 by 20-Inch Stainless Steel Nylon Insert Locknut, 50-Pack The Hillman Group 829720 1/4 by 20-Inch Stainless Steel Nylon Insert Locknut, 50-Pack
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Lock Nut 1/4 Lock Nut 1/4"-20 Inch (100 Pieces) Stainless Steel Finish Hex, By Bolt Dropper, 304 18-8 Stainless With Nylon Insert.
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304 Stainless Steel Lock Nut Assortment 170 Pcs, M3 M4 M5 M6 M8 M10 M12 Nylon Insert Locknut 304 Stainless Steel Lock Nut Assortment 170 Pcs, M3 M4 M5 M6 M8 M10 M12 Nylon Insert Locknut
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Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1/2 Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1/2" NPT Female
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Dernord Cast Pipe Fitting Stainless Steel 304 Hex Locknut 1/2 Inch NPT Female (Pack of 2) Dernord Cast Pipe Fitting Stainless Steel 304 Hex Locknut 1/2 Inch NPT Female (Pack of 2)
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Ronteix Full 304 Stainless Steel Adjustable Hose Clamp Lock Nut T-Bolt Clamps (51~59mm, 2 Pack) for 1-3/4'' Hose Ronteix Full 304 Stainless Steel Adjustable Hose Clamp Lock Nut T-Bolt Clamps (51~59mm, 2 Pack) for 1-3/4'' Hose
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5/16-18 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8, Plain Finish, Quantity 50 5/16-18 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8, Plain Finish, Quantity 50
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Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1 Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1" NPT Female
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1/2-13 Serrated Flange Hex Lock Nuts, Stainless Steel 304, Bright Finish, Quantity 10 1/2-13 Serrated Flange Hex Lock Nuts, Stainless Steel 304, Bright Finish, Quantity 10
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SeaLux Marine AISI 316 Stainless Steel Heavy Duty Class III Bow Eye with Taper Safety Lock Nut 1/2 SeaLux Marine AISI 316 Stainless Steel Heavy Duty Class III Bow Eye with Taper Safety Lock Nut 1/2" (M12) Stock (4-3/4") Length, 6000 lbs Capacity
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uxcell 50 Pcs M3 304 Stainless Steel Self-Locking Anti-loose Insert Hex Nylock Lock Nut uxcell 50 Pcs M3 304 Stainless Steel Self-Locking Anti-loose Insert Hex Nylock Lock Nut
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Reviews

1. The Hillman Group 829720 1/4 by 20-Inch Stainless Steel Nylon Insert Locknut, 50-Pack

Feature

Nylon Insert Lock Nuts have a captive undersized nylon washer that creates friction with the mating threads to prevent loosening
Helps resist the effects of vibration and other forces
Stainless Steel

Description

Nylon Insert Lock Nuts are also known as stop nuts. Lock nuts are used for fastening to a bolt when mechanically joining materials together. The bolt threads into the nylon material are located at the top of the nut. The purpose of the nylon insert is to prevent backing off or loosening from vibration.

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

Feature

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.


LOCKNUTS THAT YOU CAN DEPEND ON: Our hex lock nuts are very strong and are great for both indoor and outdoor use. This stainlessis superior to regular steel and provides excellent rust resistance.


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.
WILL NOT COME LOOSE: 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.

Description

Bolt Dropper Hex Lock Nutsare perfect for use near salt water, fresh waterand other related projects.

TOP QUALITY HEX LOCK NUTS:

  • Rated for both indoor and outdoor use
  • Superior corrosion resistance to regular steel, made with100% Stainless Steel.

VALUE:
Get the most out of your purchase! We offer different sizepackages so you won't have to worry about running out of Hex Lock Nutsin the middle of your project. Bolt Dropper Hex Lock Nutsare more corrosion resistantand stronger than other Hex Lock Nutsand we stand by our claim 100%.

SPECIFICATIONS:

  • Diameter: 1/4" Inch Inside Diameter
  • Thread Size: 20 Threads per Inch (Standard Thread Size/Coarse Thread)
  • Quantity: 100 Pack
  • Material: 18-8 (304) Stainless Steel


WARRANTY:

Bolt Dropper Hex Lock Nutscome with a 100% Satisfaction Guarantee, if you have any problems we will replace them free of charge!

3. 304 Stainless Steel Lock Nut Assortment 170 Pcs, M3 M4 M5 M6 M8 M10 M12 Nylon Insert Locknut

Feature

ALL-AROUND and MULTIFACETED ASSORTMENT KIT from Top Grade 304 stainless steel nylon lock nuts in 7 common sizes for general, convenient, and handy use making it highly ideal for use professionals and DIYers. This kit is one of the few in the market with high-quality and better quantity making it a cost-efficient choice.
Made with INDUSTRIAL-STRENGTH NYLON COLLAR capable enough to replace lock washers and prevent bolts from being exposed and coming out providing better security and firm hold. Performs better compared to lock washers as it is made out of non-corrosive material.
SOLID and STURDY POLYMER-INSERT LOCK NUTS are highly resistant against turning, preventing the lock nuts from weakening and loosening under vibration and torque which reduces the strength of hold. Guaranteed to stay intact and in firm hold making virtually indestructible.
RUGGED and TOUGH PLASTIC COMPARTMENT as carrying case allowing the user to neatly organize the lock nuts according to size. It also works as a convenient storage to be kept in a garage, workbench, or on the go job sites. The transparency of the box allows the user to check the quantity and conduct inventory without opening the box.
BETTER QUANTITY ASSORTMENT. Composed of M3 (45 pieces), M4 (35 pieces), M5 (30 pieces), M6 (30 pieces), M8 (15 pieces,), M10 (10 pieces), and M12 (5 pieces). Allocating more quantity for the commonly used lock nuts.

Description

This Lock Nut assortment kit totals to 170 pieces and is composed of 45 pieces of M3, 35 pieces of M4, 30 pieces of M5, 30 pieces of M6, 15 pieces of M8, 10 pieces of M10, and 5 pieces of M12.

More pieces are allocated on lock nuts that are commonly used. These lock nuts are provisioned with nylon collars thus, eliminating the need for lock washers. These nylon collars of these nuts are made from an industrial-strength material has an increased grip, as a result, it's likely to last much longer and be more difficult to undo. It also performs better compared to lock washers as it is made out of non-corrosive material therefore reduces its proneness to leaking.

While the lock nuts themselves are made rigidly solid polymer making them highly resistant against turning, and they are more tightly adherent to each other which means that any exposure to vibration will not result in unlocking. Guaranteed to stay intact and in firm hold making them virtually indestructible.

Unlike other plastic container that comes with the kit, the kit comes with a transparent plastic compartment made from high quality polyurethane for a long-standing and enduring service in order to support the combined weight of the lock nuts and usual wear and tear This plastic container comes with a pre-installed border to keep the lock nuts neatly organized and well-kept.

Altogether, this assortment kit makes it ideal for use of professionals and DIYers, alike with more quantity and better overall quality this is certainly and undoubtedly the better cost-effective choice.

4. Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1/2" NPT Female

Feature

Hex locknut locks two threaded fittings into place for stability and reduced vibrations
Female National Pipe Taper (NPT) threads for use with male threaded pipes and fittings
Made of stainless steel 304 for greater strength than 302 grade steel
Low carbon content to ensure greater resistance to corrosion
Meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance

Description

The Merit Brass hex locknut is a stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads locking two fittings into place for stability and reduced vibrations. The locknut has NPT threads for creating tighter seals than straight threads. The hexagonal shape provides increased leverage for use with a wrench during installation and disassembly. Made of stainless steel 304, the lower carbon content of this locknut ensures higher corrosion resistance than 302 grade steel. This fitting meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance.

Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).

Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada.

5. Dernord Cast Pipe Fitting Stainless Steel 304 Hex Locknut 1/2 Inch NPT Female (Pack of 2)

Feature

Male National Pipe Taper (NPT) threads on male threaded pipes and fittings
Made of stainless steel 304 for better strength
Preventing rust processes and for the whole body
Higher corrosion resistance than the 302 grade stainless steel
Keep stable and reducing vibrations

Description


Product Features

Dernord stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads locking two fittings into place for stability and reduced vibrations.


From the Manufacturer

Dernord A lock nut which has NPT threads for creating tighter seals than straight threads is used for fastening to a bolt when mechanically joining materials together and preventing loosening from vibration or back off. The hexagonal shape provides increased leverage for use with a wrench during installation and disassembly.


Technical Details

Item Weight:0.55 ounces

Screw Type:1/2"NPT

Material: SUS304

Color:Silver

6. Ronteix Full 304 Stainless Steel Adjustable Hose Clamp Lock Nut T-Bolt Clamps (51~59mm, 2 Pack) for 1-3/4'' Hose

Feature

Stainless adjustable hose clamp t-bolt effective range: 51 mm-59 mm (2.00 inch-2.32 inch), and fits auto silicone hose with inside diameter: 1-3/4 inch (45 mm);
The band of Ronteix stainless steel t-bolt clamps are 0.6mm thick, and 19mm width rounded edge, which won't damage the hose or pipes;
Ronteix t-bolt clamp are made of 100% 304# stainless steel material, and the unique lock nut design lock the hoses or pipes tightly under vibrations and torque;
Ronteix t-bolt hose clamps are with high quality pure 304 stainless steel screw, which can lock the hose very tightly, leak-proof, and ensure of clamps long lasting;
Note: if used this t-bolt hose clamps for industrial and military hose or pipes, please measure the outside diameter of them before purchase.

Description

Stainless adjustable hose clamp t-bolt effective range: 51 mm-59 mm (2.00 inch-2.32 inch), and fits auto silicone hose with inside diameter: 1-3/4 inch (45 mm) (This suggestion are based on auto silicone hose with 5 mm thick wall);

Ronteix full stainless steel hose clamps provides leak-proof connections in a wide variety of industrial and military applications, frequently installed on coolant and air-intake systems for construction vehicle, truck, aircraft, marine and bus engines, duct systems, bag house equipment, irrigation systems, medical equipment;

Ronteix manufacture t-bolt clamps from 100% 304 series stainless steel. The 0.6 mm thick 19 mm width rounded band edges protect soft hose material, works well for all hoses and pipes;

Ronteix lock nut hose clamps provide high tensile strength, durability, and corrosion resistance for the high quality stainless steel lock nut part;

The size of the silicone hose we suggested are based on auto silicone hoses, so if use this stainless steel hose clamp for other size hoses or pipes, please measure the outside diameter of them before purchase.

7. 5/16-18 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8, Plain Finish, Quantity 50

Feature

For use with an externally threaded item that measures 5/16 inch and has 18 threads per inch.
Width Measured From Flat to Flat 1/2"
Height 11/32"
Hex Socket Drive 1/2"
18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.

Description

A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut. It is a nut with a nylon collar insert that resists turning. The plastic insert is placed at the end of the nut, and its inner diameter (ID) is slightly smaller than the major diameter of the screw. The insert deforms elastically over the threads of the screw, but threads are not cut into the nylon. The nylon insert locks the nut by friction against the screw under the applied radial compressive force. Nyloc nuts retain their locking ability up to 250 F (121 C). Authorities disagree on whether nyloc nuts should be reused. For example, Carroll Smith (Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook) notes that the nylon insert is not damaged by installation and therefore they can be reused many times ,and a Federal Aviation Administration Advisory Circular allows nuts to be reused if the prevailing torque is within specification. However, an Air Force Technical Order requires replacement of self-locking nuts in critical areas.

8. Stainless Steel 304 Cast Pipe Fitting, Hex Locknut, MSS SP-114, 1" NPT Female

Feature

Hex locknut locks two threaded fittings into place for stability and reduced vibrations
Female National Pipe Taper (NPT) threads for use with male threaded pipes and fittings
Made of stainless steel 304 for greater strength than 302 grade steel
Low carbon content to ensure greater resistance to corrosion
Meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance

Description

The Merit Brass hex locknut is a stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads locking two fittings into place for stability and reduced vibrations. The locknut has NPT threads for creating tighter seals than straight threads. The hexagonal shape provides increased leverage for use with a wrench during installation and disassembly. Made of stainless steel 304, the lower carbon content of this locknut ensures higher corrosion resistance than 302 grade steel. This fitting meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance.

Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).

Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada.

9. 1/2-13 Serrated Flange Hex Lock Nuts, Stainless Steel 304, Bright Finish, Quantity 10

Feature

Width Measured From Flat to Flat 7/8"
Overall Width 1 1/8"
Overall Height 11/16"
Hex Socket Drive 7/8"
The basic alloy. Type 304 (18-8) is an austenitic steel possessing a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. It is a nonmagnetic steel which cannot be hardened by heat treatment, but instead. must be cold worked to obtain higher tensile strengths.

Description

Aflange nutis anutthat has a wideflangeat one end that acts as an integrated, non-spinning washer. These nuts have serrations on the integrated washer giving it a "locking" characteristic. This serves to distribute the pressure of thenutover the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.

10. SeaLux Marine AISI 316 Stainless Steel Heavy Duty Class III Bow Eye with Taper Safety Lock Nut 1/2" (M12) Stock (4-3/4") Length, 6000 lbs Capacity

Feature

Unique Design with Taper Security Lock Nut, To be used together with class 3 chain and padlock to ensure safe locking and to fulfill insurance regulations.
Constructed of polished AISI 316 stainless steel, to minimize potential corrosion.
This Bow Eye measures approximately 3" W x 4-3/4" H x 3/4" D overall and has (2) approximate 1/2" diameter x 2-3/8" long threaded bolts with 1 7/8" apart center on center.
Bow Eye Opening: 1 3/4" Stainless Steel Taper Security Nuts, Washers and installation instruction are included

Description

SeaLux Marine AISI 316 Stainless Steel Heavy Duty Class III Bow Eye with Taper Safety Lock Nut 1/2" (M12) Stock (4-3/4") Length, 6000 lbs Capacity ************ Material: Polished AISI 316 Stainless Steel ************ Height: 4-3/4" ************ Stud Diameter: 1/2" ************ Thread Length: 2 3/8" ************ Center on Center: 1 7/8" (46 mm) ************ Bow Eye Opening: 1 3/4" ************ Space Between Studs: 1-3/8" ************ Nuts and washer included **************** Instruction / installation manual included. Southco Part# M7-32-9506512

11. uxcell 50 Pcs M3 304 Stainless Steel Self-Locking Anti-loose Insert Hex Nylock Lock Nut

Feature

Hex Size: 5.5mm/0.22"; Thread Size: M3/0.12"(Dia)
Product Name: Hex Lock Nut; Material: 304 Stainless Steel
Weight: 22g; Package Content: 50(+/-2%) x Hex Lock Nut
Main Color: Silver Tone; Height: 3.7mm/0.15"
Pitch: 0.5mm

Description

Description:
1. Hex head, female threaded inside,304stainless steel material,anti-loose hexnut.
2. Used with a machine or cap screw for mechanically joining materials together.
3. Widely used in machinery and equipment, electronic equipment, communications equipment, hardware, lighting, building bridges, furniture, decoration and other related industries.

Conclusion

By our suggestions above, we hope that you can found the best locknuts stainless for you. Please don't forget to share your experience by comment in this post. Thank you!