20 Best 4-40 Stainless Steel Machine Screw of 2022

Are you looking for the best 4-40 Stainless Steel Machine Screw? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 4-40 Stainless Steel Machine Screw.


Having trouble finding a great 4-40 Stainless Steel Machine Screw?


This problem is well understood by us because we have gone through the entire 4-40 Stainless Steel Machine Screw research process ourselves, which is why we have put together a comprehensive list of the best 4-40 Stainless Steel Machine Screws available in the market today.


After hours of searching and using all the models on the market, we have found the best 4-40 Stainless Steel Machine Screw for 2022. See our ranking below!

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1
binifiMux 160pcs #4-40 UNC Phillips Pan Head Machine Screws Hex Nuts Assortment Kit, 3/16“ 5/16”...
binifiMux 160pcs #4-40 UNC Phillips Pan Head Machine Screws Hex Nuts Assortment Kit, 3/16“…
2
Guard4U 280Pcs #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit-...
Guard4U 280Pcs #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit-…
3
Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40...
Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40…
4
VIGRUE 540PCS #2-56#4-40#6-32 Phillips Pan Head Screws Bolt Nut Flat Washers 304 Stainless Steel...
VIGRUE 540PCS #2-56#4-40#6-32 Phillips Pan Head Screws Bolt Nut Flat Washers 304 Stainless Steel…
5
#4-40 x 1/2' inch (100 pcs) Phillips Pan Head Machine Screw Bolt, 304 Stainless Steel 18-8 Screw,...
#4-40 x 1/2″ inch (100 pcs) Phillips Pan Head Machine Screw Bolt, 304 Stainless Steel 18-8 Screw,…
6
HVAZI #4-40 UNC Stainless Steel Phillips Flat Head Machine Screws Nuts Assortment Kit
HVAZI #4-40 UNC Stainless Steel Phillips Flat Head Machine Screws Nuts Assortment Kit
7
RLECS #4-40x3/8inch Phillips Screw 100PCS 304 Stainless Steel Phillips Countersunk Head Machine...
RLECS #4-40×3/8inch Phillips Screw 100PCS 304 Stainless Steel Phillips Countersunk Head Machine…
8
Prime-Line 9000349 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1/2 in., Grade 18-8 Stainless...
Prime-Line 9000349 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1/2 in., Grade 18-8…
9
iExcell 1500 Pcs Metric M3 x 4/6/8/10/12/16/20/25/30/35/40/45/50 Stainless Steel 304 Hex Socket...
iExcell 1500 Pcs Metric M3 x 4/6/8/10/12/16/20/25/30/35/40/45/50 Stainless Steel 304 Hex Socket…
10
HVAZI #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit
HVAZI #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit
11
Prime-Line 9073966 Machine Screw Hex Nuts, #4-40, Grade 18-8 Stainless Steel, 100-Pack
Prime-Line 9073966 Machine Screw Hex Nuts, #4-40, Grade 18-8 Stainless Steel, 100-Pack
12
Elantek #4-40 UNC 304-Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit
Elantek #4-40 UNC 304-Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit
13
Prime-Line 9000415 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1-1/2 in, Grade 18-8 Stainless...
Prime-Line 9000415 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1-1/2 in, Grade 18-8…
14
Prime-Line 9000377 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1 in, Grade 18-8 Stainless...
Prime-Line 9000377 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1 in, Grade 18-8 Stainless…
15
Stainless 4-40 x 5/8' (1/4' to 1-1/2' Available) Pan Head Machine Screws, Full Thread, Phillips...
Stainless 4-40 x 5/8″ (1/4″ to 1-1/2″ Available) Pan Head Machine Screws, Full Thread, Phillips…
16
HVAZI #2-56#4-40#6-32 UNC Stainless Steel Socket Head Cap Screws Nuts Assortment Kit...
HVAZI #2-56#4-40#6-32 UNC Stainless Steel Socket Head Cap Screws Nuts Assortment Kit…
17
18-8 Stainless Steel Small Pattern Machine Screw Hex Nut, Plain Finish, #4-40 Thread Size, 3/16'...
18-8 Stainless Steel Small Pattern Machine Screw Hex Nut, Plain Finish, #4-40 Thread Size, 3/16″…
18
Adiyer 40-Pack Metric M4 x 40mm Machine Screws for Cabinet Drawer Knob Pull Handle, 304 Stainless...
Adiyer 40-Pack Metric M4 x 40mm Machine Screws for Cabinet Drawer Knob Pull Handle, 304 Stainless…
19
Prime-Line 9126651 Machine Screws, Pan Head, Phillips Drive, #4-40 X 2 in, Grade 18-8 Stainless...
Prime-Line 9126651 Machine Screws, Pan Head, Phillips Drive, #4-40 X 2 in, Grade 18-8 Stainless…
20
binifiMux 240pcs #4-40 Flat Phillips Countersunk Head Machine Screws Hex Nuts Assortment Kit 304...
binifiMux 240pcs #4-40 Flat Phillips Countersunk Head Machine Screws Hex Nuts Assortment Kit 304…

20 Best 4-40 Stainless Steel Machine Screw Reviews in 2022

Bestseller No. 1


binifiMux 160pcs #4-40 UNC Phillips Pan Head Machine Screws Hex Nuts Assortment Kit, 3/16“ 5/16”…

  • ⚪Quantity: 160pcs; ⚪Material: 304 Stainless Steel ;
  • ⚪Color: Silver; ⚪Drive type: Phillips; ⚪Head Type: Round;
  • ⚪Package: 100pcs 4-40 Screws, 60 Hex Nuts in one storage Box;
  • ⚪Name: 4-40 Machine Screws and 4-40 Hex Nuts Kit;

Bestseller No. 2


Guard4U 280Pcs #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit-…

  • High Quality Precision #4-40 UNC Phillips Pan Head Machine Screws Assortment Kit,Meets ANSIB18.6.3 specifications.
  • Made of 304 Stainless Steel, Anti-corrosion and strength. They have superior rust resistance and the excellent of oxidation resistance, which can…
  • Kit contains:SAE Sizes #4-40 x 3/16″,#4-40 x 1/4″,#4-40 x 5/16″,#4-40 x 3/8″,#4-40 x 1/2″,#4-40 x 5/8″,#4-40 x 3/4″,#4-40 x 7/8,#4-40 x 1″,each 20…
  • This screw nut kit can be widely used in all kinds of door handle, faucet, light fixture, knobs, locks and toys, , plumber and other small repairs…
  • Packing Quantity:280PCS,All contained in a sturdy and transparent plastic box, can be use for a storage box. Easy to install and durable to use.

Bestseller No. 3


Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40…

  • Model Number: FSC0412PPSB
  • Item Package Length: 3.299999996634″
  • Item Package Width: 2.299999997654″
  • Item Package Height: 1.49999999847″

Bestseller No. 4


VIGRUE 540PCS #2-56#4-40#6-32 Phillips Pan Head Screws Bolt Nut Flat Washers 304 Stainless Steel…

  • ◆Good Material: high quality 304 stainless steel, superior rust resistance, with fine workmanship
  • ◆Package Quantity: Phillips pan head SAE bolts screw nuts washers machine screws kit contains 260pcs screws and 140pcs washers and 140pcs nuts,…
  • SAE Sizes: 12 different sizes includes, #6-32×1/4″, #6-32×3/8″, #6-32×5/8″, #6-32×3/4″, #4-40×1/4″, #4-40×5/16″, #4-40×5/8″, #4-40×3/8″, #2-56×5/8″,…
  • ◆Simple Organization: This set are organized in compartments in a transparent storage case with snap-close, clear view storage case for easy…
  • ◆Widely Application: these screws can be widely used in all kinds of precision machinery, classified instruments, instruments, electronic products,…

Bestseller No. 5


#4-40 x 1/2″ inch (100 pcs) Phillips Pan Head Machine Screw Bolt, 304 Stainless Steel 18-8 Screw,…

  • Thread Size: 4-40; Screw Length (excluding the height of the head): 1/2″
  • Thread Coverage: Full Thread
  • Ideal use where a flat bottom head screw is desired to sit on top.
  • Material: High Quality 18-8 Stainless Steel, great strength and good corrosion resistance to make fasteners last!
  • Satification Guaranteed. Full Refund or exchange. Always on your side.

Bestseller No. 6


HVAZI #4-40 UNC Stainless Steel Phillips Flat Head Machine Screws Nuts Assortment Kit

  • High Quality 220PCS #4-40 UNC 304 Stainless Steel Phillips Flat Head Machine Screws and Hex Nuts Assortment Kit
  • Thread Diameter: #4; Thread Pitch: 40 Per Inch(Coarse); Screws have a standard 82°bevel under the head
  • The assortment contains:#4-40×3/16″,#4-40×1/4″,#4-40×5/16″,#4-40×3/8″,#4-40×1/2″,#4-40×5/8″,#4-40×3/4″,#4-40×7/8″,#4-40×1″(Length is measured from the…
  • They are Made of 304 stainless steel;304 stainless steel have good chemical resistance and may be mildly magnetic
  • 100% new,All contained in a compact and see through compartmented plastic Box.Easy to install and durable to use

Bestseller No. 7


RLECS #4-40×3/8inch Phillips Screw 100PCS 304 Stainless Steel Phillips Countersunk Head Machine…

  • Model:#4.Number of teeth:40.Length:3/8inch.
  • The machine screw is very convenient and can be used to replace or increase the hard disk in the computer system.
  • Made of 304 stainless steel and can be used indoors and outdoors. It is usually used to fix power supply equipment and expansion cards on the computer…
  • For straight shank fasteners, the external thread is designed to pass through a pre-punched hole or nut to form a pair of threads.
  • There are two models in sufficient quantity.

Bestseller No. 8


Prime-Line 9000349 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1/2 in., Grade 18-8 Stainless…

  • Size: #4-40 X 1/2 inch
  • Flat Head, Phillips Drive
  • Use with nuts or pre-threaded holes of the same diameter & thread size
  • Often used in machinery & appliances
  • Nuts and washers not included

Bestseller No. 9


iExcell 1500 Pcs Metric M3 x 4/6/8/10/12/16/20/25/30/35/40/45/50 Stainless Steel 304 Hex Socket…

  • ✔ Includes 500 Pcs, 13 Sizes, M3 Hex Socket Button Head Cap Screws Assortment, Thread Pitch 0.5 mm, Thread Size (Diameter): 3 mm, Head Diameter 5.5…
  • ✔ Includes 500 Pcs M3 Nuts to Meet Different Applications; Material of Nuts: Stainless Steel 304, High Strength And Anti-corrosion in Various…
  • ✔ Includes 500 Pcs Φ3 Washers: Add More Touch Area to Meet Different Applications, Protect Parts from Being Damaged; Material of Washers: Stainless…
  • ✔ Includes 1 Pcs Hex Key, Hex Size: 2.0 mm, to Drive These Screws Conveniently and Easily; Material of Hex Key: Chrome-Vanadium Steel, Nickel…
  • ✔ Package: All These Screws, Nuts, Washers and Hex Key Packed In a Sturdy Easy-use Plastic Storage Box, Organized Conveniently and Easily

Bestseller No. 10


HVAZI #4-40 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit

  • High Quality 220PCS #4-40 UNC 304 Stainless Steel Phillips Pan Head Machine Screws and Nuts Assortment Kit
  • Thread Diameter: #4; Thread Pitch: 40 Per Inch(Coarse)
  • The assortment contains:#4-40×3/16″,#4-40×1/4″,#4-40×5/16″,#4-40×3/8″,#4-40×1/2″,#4-40×5/8″,#4-40×3/4″,#4-40×7/8″,#4-40×1″(Length is measured from…
  • They are Made of 304 stainless steel;304 stainless steel have good chemical resistance and may be mildly magnetic
  • 100% new,All contained in a compact and see through compartmented plastic Box.Easy to install and durable to use

SaleBestseller No. 11


Prime-Line 9073966 Machine Screw Hex Nuts, #4-40, Grade 18-8 Stainless Steel, 100-Pack

  • Size: #4-40
  • Very common and versatile nut
  • Same in design as a standard hex nut, but smaller to accommodate machine screw sizes
  • Screws onto a machine screw of the same thread size
  • Often used with a washer with same diameter opening

Bestseller No. 12


Elantek #4-40 UNC 304-Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit

  • ♛【High Quality】–High Quality Precision #4-40 UNC Phillips Pan Head Machine Screws Assortment Kit,Meets ANSIB18.6.3 specifications.
  • ♛【Durable Material】–Made of 304-Stainless Steel, Anti-corrosion and strength. They have superior rust resistance and the excellent of oxidation…
  • ♛【Various Size】–Kit contains:SAE Sizes #4-40 x 3/16″,#4-40 x 1/4″,#4-40 x 5/16″,#4-40 x 3/8″,#4-40 x 1/2″,#4-40 x 5/8″,#4-40 x 3/4″,#4-40 x…
  • ♛【Wide Application】–This screw nut kit can be widely used in all kinds of door handle, faucet, light fixture, knobs, locks and toys, , plumber…
  • ♛【Easy Storage & Handy】–Packing Quantity:280PCS,All contained in a sturdy and transparent plastic box, can be use for a storage box. Easy to…

Bestseller No. 13


Prime-Line 9000415 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1-1/2 in, Grade 18-8 Stainless…

  • Size: #4-40 X 1-1/2 inch
  • Flat Head, Phillips Drive
  • Use with nuts or pre-threaded holes of the same diameter & thread size
  • Often used in machinery & appliances
  • Nuts and washers not included

Bestseller No. 14


Prime-Line 9000377 Machine Screws, Flat Head, Phillips Drive, #4-40 X 1 in, Grade 18-8 Stainless…

  • Size: #4-40 X 1 inch
  • Flat Head, Phillips Drive
  • Use with nuts or pre-threaded holes of the same diameter & thread size
  • Often used in machinery & appliances
  • Nuts and washers not included

Bestseller No. 15


Stainless 4-40 x 5/8″ (1/4″ to 1-1/2″ Available) Pan Head Machine Screws, Full Thread, Phillips…

  • 18-8 Stainless Steel
  • Pan Head Phillips (#2 screw tip size)
  • 4-40 Thread Size
  • 100 Pieces

Bestseller No. 16


HVAZI #2-56#4-40#6-32 UNC Stainless Steel Socket Head Cap Screws Nuts Assortment Kit…

  • High Quality 360PCS #2-56 #4-40 #6-32 UNC 304 Stainless Steel Hex Socket Head Cap Screws with Nuts Assortment Kit
  • Thread Diameter: #2; Thread Pitch: 56 Per Inch(Coarse); Thread Diameter: #4; Thread Pitch: 40 Per Inch(Coarse); Thread Diameter: #6; Thread Pitch: 32…
  • The assortment…
  • They are Made of 304 stainless steel;304 stainless steel have good chemical resistance and may be mildly magnetic
  • 100% new,All contained in a compact and see through compartmented plastic Box.Easy to install and durable to use

Bestseller No. 17


18-8 Stainless Steel Small Pattern Machine Screw Hex Nut, Plain Finish, #4-40 Thread Size, 3/16″…

  • The package length is 7.874 centimeters
  • The package height is 3.81 centimeters
  • The package width is 5.588 centimeters
  • Package Weight : 0.05 pounds

Bestseller No. 18


Adiyer 40-Pack Metric M4 x 40mm Machine Screws for Cabinet Drawer Knob Pull Handle, 304 Stainless…

  • In US, most drawer/cabinet Knobs/Pulls/Handles use Metric M4 machine screws or #8-32 UNC machine screws, please check which is right for you before…
  • Metric M4 Thread, Only for cabinet knobs, drawer knobs or pull handles with Metric threads.
  • Metric M4 machine screws with 0.7mm threaded pitch and 40mm threaded length.
  • 304 stainless steel material for better rust resistance, phillips Truss head machine screws.
  • Package Included: 40pcs Metric M4 x 40mm Machine Screws

Bestseller No. 19


Prime-Line 9126651 Machine Screws, Pan Head, Phillips Drive, #4-40 X 2 in, Grade 18-8 Stainless…

  • Size: #4-40 X 2 inch
  • Pan Head, Phillips Drive
  • Use with nuts or pre-threaded holes of the same diameter & thread size
  • Often used in machinery & appliances
  • Nuts and washers not included

Bestseller No. 20


binifiMux 240pcs #4-40 Flat Phillips Countersunk Head Machine Screws Hex Nuts Assortment Kit 304…

  • ⚪Quantity: 240pcs; ⚪Material: 304 Stainless Steel ;
  • ⚪Color: Silver; ⚪Drive type: Phillips; ⚪Head Type: Flat;
  • ⚪Package: 180pcs 4-40 Screws, 60 Hex Nuts in one storage Box;
  • ⚪Name:4-40 Machine Screws and 4-40 Hex Nuts Kit;

How Do You Buy The Best 4-40 Stainless Steel Machine Screw?

Do you get stressed out thinking about shopping for a great 4-40 Stainless Steel Machine Screw? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 4-40 Stainless Steel Machine Screw, which is why we have assembled a comprehensive list of the greatest 4-40 Stainless Steel Machine Screw available in the current market. We’ve also come up with a list of questions that you probably have yourself.


ConnersVine 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 4-40 Stainless Steel Machine Screw that you consider buying. Your questions might include the following:


  • Is it worth buying an 4-40 Stainless Steel Machine Screw?
  • What benefits are there with buying an 4-40 Stainless Steel Machine Screw?
  • What factors deserve consideration when shopping for an effective 4-40 Stainless Steel Machine Screw?
  • Why is it crucial to invest in any 4-40 Stainless Steel Machine Screw, much less the best one?
  • Which 4-40 Stainless Steel Machine Screw are good in the current market?
  • Where can you find information like this about 4-40 Stainless Steel Machine Screw?

We’re convinced that you likely have far more questions than just these regarding 4-40 Stainless Steel Machine Screw, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.


Potential sources can include buying guides for 4-40 Stainless Steel Machine Screw, 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 4-40 Stainless Steel Machine Screw. Make sure that you are only using trustworthy and credible websites and sources.


ConnersVine provides an 4-40 Stainless Steel Machine Screw 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 4-40 Stainless Steel Machine Screw 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 4-40 Stainless Steel Machine Screw 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 4-40 Stainless Steel Machine Screw?
  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 4-40 Stainless Steel Machine Screw.
  5. Customer Ratings: Number ratings grade 4-40 Stainless Steel Machine Screw objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4-40 Stainless Steel Machine Screw.
  7. Product Quality: You don’t always get what you pay for with an 4-40 Stainless Steel Machine Screw, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 4-40 Stainless Steel Machine Screw is should be an indication of how long it will work out for you.


ConnersVine always remembers that maintaining 4-40 Stainless Steel Machine Screw information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.


If you think that anything we present here regarding 4-40 Stainless Steel Machine Screw is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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