20 Best 3/8 Stainless Steel Nuts [2024]

Are you looking for the best 3/8 Stainless Steel Nuts? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 3/8 Stainless Steel Nuts.

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# Preview Product
1 3/8'-16 Stainless Hex Nut (100 Pack), by Bolt Dropper, 304 18-8 Stainless Steel Nuts 3/8"-16 Stainless Hex Nut (100 Pack), by Bolt Dropper, 304 18-8 Stainless Steel Nuts
2 3/8-16 Stainless Steel Finished Hex Nut, 304 Stainless Steel 18-8 Hexagon Nut, Bright Finish, Full... 3/8-16 Stainless Steel Finished Hex Nut, 304 Stainless Steel 18-8 Hexagon Nut, Bright Finish,...
3 Glvaner 3/8'-16 Thread Size Stainless Steel Hex Locknuts with White Nylon Insert 304 Stainless Steel... Glvaner 3/8"-16 Thread Size Stainless Steel Hex Locknuts with White Nylon Insert 304 Stainless...
4 3/8-16 Serrated Flange Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, Quantity 25 3/8-16 Serrated Flange Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, Quantity 25
5 3/8-16 Nylon Insert Hex Lock Nuts Stainless Locknuts, Hex Drive, Bright Finish, 304 Stainless Steel... 3/8-16 Nylon Insert Hex Lock Nuts Stainless Locknuts, Hex Drive, Bright Finish, 304 Stainless...
6 Prime-Line 9075389 Nylon Insert Lock Nuts, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack Prime-Line 9075389 Nylon Insert Lock Nuts, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack
7 3/8'-16 Inch Lock Nut (100 Pack) Stainless Steel Finish Hex, 304 18-8 Stainless Steel with Nylon... 3/8"-16 Inch Lock Nut (100 Pack) Stainless Steel Finish Hex, 304 18-8 Stainless Steel with Nylon...
8 POWERTEC QLN1102 3/8'-16 Nylon Insert Lock Nut Set | 18-8 304 Stainless Steel – 50 Pack POWERTEC QLN1102 3/8"-16 Nylon Insert Lock Nut Set | 18-8 304 Stainless Steel – 50 Pack
9 3/8-16 Hex Nuts, Stainless Steel 304 Hex Nut, Bright Finish, Quantity 25 3/8-16 Hex Nuts, Stainless Steel 304 Hex Nut, Bright Finish, Quantity 25
10 3/8-16 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS 3/8-16 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS
11 SNUG Fasteners (SNG759) 50 Qty 3/8-16 Stainless Steel Acorn Hex Cap Nuts SNUG Fasteners (SNG759) 50 Qty 3/8-16 Stainless Steel Acorn Hex Cap Nuts
12 Stainless 3/8-16 USS Hex Nut,(More selections in Listing!) 304 Stainless Steel (3/8-16 HEX Nuts (50... Stainless 3/8-16 USS Hex Nut,(More selections in Listing!) 304 Stainless Steel (3/8-16 HEX Nuts...
13 Prime-Line 9076719 Wing Nuts, Cold-Forged, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack Prime-Line 9076719 Wing Nuts, Cold-Forged, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack
14 TIB Performance Stainless Jam Lock Nut 3/8' Npt Pipe Female Cast Class 150 TIB Performance Stainless Jam Lock Nut 3/8" Npt Pipe Female Cast Class 150
15 Hillman 4146 Stainless Round Base Tee Nut (3/8'-16 x 7/16' x 3/4'), Stainless Steel Hillman 4146 Stainless Round Base Tee Nut (3/8"-16 x 7/16" x 3/4"), Stainless Steel
16 3/8' Lifting Eye Threaded Nut Fastener 304 Stainless Steel Ring Shape Lifting Eye Nut for Lifting... 3/8" Lifting Eye Threaded Nut Fastener 304 Stainless Steel Ring Shape Lifting Eye Nut for Lifting...
17 2 Pieces 316 Stainless Steel Lifting Eye Nut 3/8' UNC Marine Grade (3/8' - 2 PK) 2 Pieces 316 Stainless Steel Lifting Eye Nut 3/8" UNC Marine Grade (3/8" - 2 PK)
18 3/8-16 Serrated Flange Nuts Flanged Locknuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS 3/8-16 Serrated Flange Nuts Flanged Locknuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS
19 3/8'-16 Stainless Hex Nut, by Bolt Fullerkreg, 304 18-8 Stainless Steel Nuts,Quantity 25 3/8"-16 Stainless Hex Nut, by Bolt Fullerkreg, 304 18-8 Stainless Steel Nuts,Quantity 25
20 Hooshing 100 Pieces 3/8'-16 Stianless Hex Nuts Stainless Steel 304 Fasteners Hooshing 100 Pieces 3/8"-16 Stianless Hex Nuts Stainless Steel 304 Fasteners
SaleBestseller No. 1
3/8"-16 Stainless Hex Nut (100 Pack), by Bolt Dropper, 304 18-8 Stainless Steel Nuts
  • 【High Quality Stainless】These Nuts are 100% 18-8 (304) Stainless Steel which is one of the highest forms of corrosion resistant metals, making it...
  • 【Nuts That You Can Depend On】Our hex nuts are very strong and are great for both indoor and outdoor use. This stainless is superior to regular...
  • 【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...
  • 【Dimensions】Diameter: 3/8"-16 | Thread Type: Coarse (standard) | Quantity: 100 pcs | Material: 18-8 (304) Stainless Steel.
  • 【LIFETIME GUARANTEE】We are so confident that our product is the best on the market that we offer a No Hassle Lifetime Guarantee.
Bestseller No. 2
3/8-16 Stainless Steel Finished Hex Nut, 304 Stainless Steel 18-8 Hexagon Nut, Bright Finish, Full...
  • Thread Size:3/8-16; Thread Pitch: 16 TPI; Thread Type: Coarse Thread UNC
  • Hex Drive Size: 9/16"; Package: 25 PCS
  • Nut Width (from point to point): 0.65 inch; Nut Height: 0.33 inch; Specification Standard Meets ASME B18.2.2
  • Made of 304 stainless steel (no coating outside) 18-8 which is superior to regular steel and any zinc plated fasteners, provides good strength and...
  • Commonly used in conjunction with bolts or screws to provide secure fastenings into unthreaded holes. You could find the matched bolts, flat washers...
Bestseller No. 3
Glvaner 3/8"-16 Thread Size Stainless Steel Hex Locknuts with White Nylon Insert 304 Stainless Steel...
  • Thread Size: 3/8"-16; Thread Pitch: 16 TPI; Thread Type: Coarse Thread; Thread Coverage: Full Thread
  • Hex Drive Size: 9/16"; Package: 50 pieces
  • Material: 304 stainless steel (A2-70) and no exterior finish, greater strength and corrision resistance performance than regular stianless steel or...
  • Nut Heigth: 0.46 inch; Feel free to contact us if you have no idea about what size to choose.
  • The nylon insert helps grip the screw thread to prevent from loosening. You could also find the matched screws with different head types in our shop...
Bestseller No. 4
3/8-16 Serrated Flange Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, Quantity 25
  • Made of high quality stainless steel 18-8 (304) which offers a high level of chemical and corrosion resistance.
  • Nut Type: Hex Serrated Flange Nut.
  • Inside Diameter: 3/8 Inch; Thread Size: 16 Threads per Inch.
  • Package Included: 25 x Serrated Flange Hex Lock Nuts 3/8-16.
  • Flange Nuts are great to have around for use in wood and wet environments.
Bestseller No. 5
3/8-16 Nylon Insert Hex Lock Nuts Stainless Locknuts, Hex Drive, Bright Finish, 304 Stainless Steel...
  • Package: 25 PCS 3/8-16 Nylon Insert Hex Stainless Locknuts (Specification described in the pictures)
  • Thread Size:3/8-16; Thread Pitch: 16 TPI Coarse Thread UNC; Thread Coverage: Full
  • Hex Drive Size: 9/16"; Width From Flat to Flat: 0.551 inch to 0.564 inch; Overall Height: 0.438 inch to 0.468 inch;
  • High Quality Material: Made of Stainless Steel 304 (18-8) which provides good strength and corrosion resistance in bad environments without the need...
  • Will NOT COME LOOSE: With a nylon insert inside, the lock nuts greatly reduce loosening under vibrations and torque.
Bestseller No. 6
Prime-Line 9075389 Nylon Insert Lock Nuts, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack
  • Size: 3/8 inch-16
  • Features an internal nylon ring that grips bolt threads better than a standard finished nut
  • Great for use in applications where the bolt may be subject to vibration
  • Can also be used as a secondary nut to help lock the main nut in place
  • The side with the nylon insert should face towards the tip of the bolt, not towards the surface being fastened
Bestseller No. 7
3/8"-16 Inch Lock Nut (100 Pack) Stainless Steel Finish Hex, 304 18-8 Stainless Steel with Nylon...
  • 【High Quality Stainless】These Lock Nuts are 100% 18-8 (304) Stainless Steel which is one of the highest forms of corrosion resistant metals,...
  • 【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...
  • 【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...
  • 【Dimensions】Inside Diameter: 3/8”-16 | Threads Per Inch: 16 | Thread Type: Coarse (standard) | Quantity: 100 pcs | Material: 18-8 (304)...
  • 【LIFETIME GUARANTEE】We are so confident that our product is the best on the market that we offer a No Hassle Lifetime Guarantee.
Bestseller No. 8
POWERTEC QLN1102 3/8"-16 Nylon Insert Lock Nut Set | 18-8 304 Stainless Steel – 50 Pack
  • INCLUDES: (50pc) Pack of 3/8" x 16 Lock Nuts
  • APPLICATIONS: These stainless lock nuts are for use with an externally threaded components (like bolts and studs) that measure 3/8 inch and has 16...
  • HEAVY DUTY DESIGN: Commonly used hex lock nuts constructed out of stainless steel grade 18-8 for long term durability, and is designed to outperform...
  • SECURE CONNECTION: Internal nylon insert protects against turning, and experience a reduction in loosening when under high vibration and torque
  • OPTIMAL PERFORMANCE: Stays in great shape under tough conditions and rough environments, without the need to perform time consuming maintenance
Bestseller No. 9
3/8-16 Hex Nuts, Stainless Steel 304 Hex Nut, Bright Finish, Quantity 25
  • Diameter: 3/8; Thread Size: 1/16"; Hex Drive Size: 9/16'' .
  • Made of high quality stainless steel 304, provides strength and protection from corrosion and tarnishing.
  • Widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, etc.
  • Package Included: 25 PCS.
Bestseller No. 10
3/8-16 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS
  • Product Type: Nylon Insert Lock Nuts.
  • Material: Stainless Steel 18-8 (304).
  • Diameter-Thread Size : 3/8"-16.
  • Color : Plain Finish.
  • Package Included: 50 PCS.
SaleBestseller No. 11
SNUG Fasteners (SNG759) 50 Qty 3/8-16 Stainless Steel Acorn Hex Cap Nuts
  • For use with an externally threaded item that measures 3/8 and has 16 threads per inch
  • Package contains 50 pieces
  • Height: 5/8"
  • Hex Socket Drive 5/8"
  • 304 stainless steel offers a nice shiny finish and great corrosion resistance
Bestseller No. 12
Stainless 3/8-16 USS Hex Nut,(More selections in Listing!) 304 Stainless Steel (3/8-16 HEX Nuts (50...
  • 304 Series Stainless Steel, (18-8)
  • Tensile - 100,000 psi to 125,000 psi, Hardness - 85 Rockwell B
  • 3/8-16 Hex Nut
  • Great corrosion resistance for outside applications
  • 50 pieces
Bestseller No. 13
Prime-Line 9076719 Wing Nuts, Cold-Forged, 3/8 in.-16, Grade 18-8 Stainless Steel, 10-Pack
  • Size: 3/8 inch-16
  • Features two easy to grip "wings" that allow it to be tightened by hand
  • Used on a bolt of the same diameter or thread size. In some applications a flat washer is recommended between the wing nut and the item it is...
  • Great for use in applications where frequent adjustments are needed
  • Allows for easy assembly and disassembly of fixtures or equipment
Bestseller No. 14
TIB Performance Stainless Jam Lock Nut 3/8" Npt Pipe Female Cast Class 150
  • CORROSION AND RUST RESISTANT
  • QUANTITY: 1 pc Lock Jam Nut
  • stainless steel
  • 3/8" npt Male female threads
  • FAST SHIPPING
Bestseller No. 15
Hillman 4146 Stainless Round Base Tee Nut (3/8"-16 x 7/16" x 3/4"), Stainless Steel
  • Use in hard and/or soft wood to keep a flush surface
  • Full assortment includes round base & long prong tee nut types
  • Included variants range from #10-32 to 3/8"-16 in fine & coarse thread sizes
  • Included variants measure 3/4" in height
  • Stainless steel finish for best-in-class corrosion resistance
Bestseller No. 16
3/8" Lifting Eye Threaded Nut Fastener 304 Stainless Steel Ring Shape Lifting Eye Nut for Lifting...
  • M10 Eye Nuts Size: Total Height: 42mm/1.65", Ring Thickness: 8mm/0.32", Ring Inner Diameter: 25mm/0.98", Nut Inner Diameter: 10mm/0.39".
  • Material: 4 Pcs Ring Nut Made of 304 stainless steel Durable, Corrosion-Resistant And Rust-Free. It Has Good Load-Bearing Capacity, 230 Kg Load...
  • Easy To Use: The Ring Nut Is Convenient For Assembly And Disassembly Of Hooks, Steel Chains, Spring Hooks, Etc, to be screwed to various lengths of...
  • Functions: The ring shape M6 lifting eye nut commonly used for gripping and holding pipes and fasteners. Self-adjusting, head design instantly grips...
  • Fast Delivery: 100% guarantee fast shipment and good customer service.
Bestseller No. 17
2 Pieces 316 Stainless Steel Lifting Eye Nut 3/8" UNC Marine Grade (3/8" - 2 PK)
  • Marine grade stainless steel (AISI 316) 3/8" UNC heavy duty lifting eye nut
  • Working Load Limit (WLL): 1000 Lb
Bestseller No. 18
3/8-16 Serrated Flange Nuts Flanged Locknuts, Stainless Steel 18-8 (304), Bright Finish, 50 PCS
  • Product Type : Serrated Flange Nuts 3/8-16.
  • System of Measurement : Inch; Specifications : DIN 6923.
  • Material : Stainless Steel 18-8 (A2-70).
  • Thread Size : 16 Threads per Inch.
  • Package : 50 PCS 3/8-16 Flanged Nuts.
Bestseller No. 19
3/8"-16 Stainless Hex Nut, by Bolt Fullerkreg, 304 18-8 Stainless Steel Nuts,Quantity 25
  • Type:Hex Nut
  • Diameter-Thread Size:3/8"-16
  • Grade: 18-8
  • Finish: Plain
  • UOM: Pkg of 25
Bestseller No. 20
Hooshing 100 Pieces 3/8"-16 Stianless Hex Nuts Stainless Steel 304 Fasteners
  • 【Dimension】3/8"-16 Nuts. Thread Type: Coarse (standard). Bright Finish. Quantity: 100 Pieces.
  • 【Material】Made of high quality 304 Stainless Steel, more strong and work longer than regular steel and provides excellent rust resistance.
  • 【Easy to install】Hex style can make them easy to tighten with a wrench or socket.
  • 【Great Tools】Can be used both indoor and outdoor in wood or wet environments. Will support lots of your projects, fixing devices that require...
  • 【Widely Applications】 Used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances,...

Having trouble finding a great 3/8 Stainless Steel Nuts?

This problem is well understood by us because we have gone through the entire 3/8 Stainless Steel Nuts research process ourselves, which is why we have put together a comprehensive list of the best 3/8 Stainless Steel Nutss available in the market today.

After hours of searching and using all the models on the market, we have found the best 3/8 Stainless Steel Nuts for 2023. See our ranking below!

How Do You Buy The Best 3/8 Stainless Steel Nuts?

Do you get stressed out thinking about shopping for a great 3/8 Stainless Steel Nuts? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 3/8 Stainless Steel Nuts, which is why we have assembled a comprehensive list of the greatest 3/8 Stainless Steel Nuts available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 3/8 Stainless Steel Nuts that you consider buying. Your questions might include the following:

  • Is it worth buying an 3/8 Stainless Steel Nuts?
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  • Which 3/8 Stainless Steel Nuts are good in the current market?
  • Where can you find information like this about 3/8 Stainless Steel Nuts?

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Potential sources can include buying guides for 3/8 Stainless Steel Nuts, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 3/8 Stainless Steel Nuts. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 3/8 Stainless Steel Nuts buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 3/8 Stainless Steel Nuts currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 3/8 Stainless Steel Nuts has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 3/8 Stainless Steel Nuts?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 3/8 Stainless Steel Nuts.
  5. Customer Ratings: Number ratings grade 3/8 Stainless Steel Nuts objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 3/8 Stainless Steel Nuts.
  7. Product Quality: You don’t always get what you pay for with an 3/8 Stainless Steel Nuts, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 3/8 Stainless Steel Nuts is should be an indication of how long it will work out for you.

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FAQ:

Q: What grade of stainless steel are the nuts made of?

A: The nuts are manufactured in the US style of 3/8″ UNC. Not to be used for overhead lifting. AISI 316 stainless is a premium grade of stainless and is considered by many to be best in class. 316 stainless is corrosion resistant and very durable even in the harshest of conditions.

Q: What is the size of the nut on AISI 316?

A: Each nut is stamped 316 and 3/8″ (for the size). The nuts are manufactured in the US style of 3/8″ UNC. Not to be used for overhead lifting. AISI 316 stainless is a premium grade of stainless and is considered by many to be best in class. 316 stainless is corrosion resistant and very durable even in the harshest of conditions.

Q: What size is the UNC lifting eye nut for stainless steel?

A: This is for one (1) quality marine grade stainless steel (AISI 316) 3/8″ UNC lifting eye nut. Each nut is stamped 316 and 3/8″ (for the size).

Q: What is the size of each nut on the nuts?

A: Each nut is stamped 316 and 3/8″ (for the size). The nuts are manufactured in the US style of 3/8″ UNC. Not to be used for overhead lifting.