The Best M3X4 Screws of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best M3X4 Screws of 2022. Check our ranking below.

2,681 Reviews Scanned

Rank No. #1

uxcell M3x4mm Thread Button Head Hex Socket Cap Screw Bolt 100pcs

Drive Type: Hex Socket; Head Style: Socket Button Head; Material: 10.9 Alloy Steel
Package Content: 100(+/-2%)pcs x Button Head Screws; Product Name: Button Head Screws; Thread Size: (Male)M3x4mm/0.12"x0.16"(D*L)
Weight: 39g; Main Color: Black; Thread Pitch: 0.5mm
Total Length: 5.5mm/0.22"; Head Diameter: 6mm/0.24"
Hex Socket Width: 2mm/0.08"; Head Height(Approx): 1.5mm/0.06"

Rank No. #2

JIUWU 50 Pcs M3x4mm Carbon Steel Hex Socket Head Screw Bolts M3 Screws Wall Mount Screws T Slot Bolts

High Strength: M3*4 mm hexagonal carbon steel bolts are made of carbon steel with high strength and hardness, able to withstand large tensile and shear forces to ensure a strong connection.package included: 50pcs hex socket head screw
Corrosion Resistance: Carbon steel bolts are surface treated, such as zinc plating, chrome plating, etc., which can improve their corrosion resistance, 12.9 / din912 standard
Universality: M3*4 is a common bolt specification, widely used in a variety of mechanical equipment, automobiles, electronic equipment and other fields, with a high degree of universality
Easy To Install: The head of the hexagonal bolt is designed in hexagonal shape, which makes it easy to install and dismantle using a spanner or socket, and the operation is simple and convenient. Thread size (diameter): 3 mm thread pitch: 0.5 mm, thread length: 4 mm (manual measurement error, please note)
Good Stability: M3*4 mm hexagonal carbon steel bolts have high dimensional accuracy, which can ensure the stability and reliability of the connection and reduce equipment failure and maintenance costs

Rank No. #3

uxcell M3x4mm Flat Head Machine Screws Inner Hex Screw 304 Stainless Steel Fasteners Bolts 40Pcs

[Specification] : ) Model: M3x4mm; Material: 304 Stainless steel; Screw Total Length: 4mm/0.16"; Pitch: 0.5mm / 0.02"; Screw Head Dia: 6mm / 0.24"; Inner Hex Dia.:2mm/0.079"; Screw Groove Type: Inner Hex.
[100% SOLID STAINLESS STEEL] : ) These Flat Head Screws are made of 304 Stainless Steel which is one of the highest forms of corrosion-resistant metals, making it last longer than other hardware on the market today.
[SCREWS THAT YOU CAN DEPEND ON] : ) Our Flat Head Machine Screws are very strong and are great for both indoor and outdoor use. This stainless is superior to regular steel and provides excellent rust resistance.
[GREAT TO KEEP AROUND] : ) Flat head socket cap screws are great to have around for use in wet environments and have strong oxidation resistance. They are strong, corrosion resistant, and will support all of your projects.
[WIDELY USED IN] : ) wind power industry, the aerospace industry, office equipment industry, petrochemical industry, the electronics industry, the communications industry, shipbuilding industry, machinery, etc.

Rank No. #4

uxcell M3 x 4mm Phillips Screw Fastener Black for Laptop PC TV Fan Switch 150pcs

Specification: Thread Type: Metric; Thread Size: M3 x 4mm; Material: Carbon Steel; Finish: Carburization + Black Zinc Plated
Application: Mainly used in notebooks, computer monitors, fans and other 3C equipment products.
How to use: It is driven by a cross groove, with uniform force, easy to lock, not easy to slip, and convenient and quick to use.
Notice: Regardless of manual or electric locking, it must be guided and slowly locked to avoid thread slippage.
Advantage: It is made of carbon steel with enough strength and proper toughness after carburizing and black zinc plating. The screw is corrosion resistant and durable.

Rank No. #5

M3 Flat Head Machine Screws and Hex Nuts Kit, 380 Pcs Black Countersunk Head Phillips Screws Bolts Nuts Assortment Kit - M3 x 4mm/ 6mm/ 8mm/ 10mm/ 12mm/ 16mm/ 20mm

Exquisite Material: These machine screws bolt and nuts are made of high-quality carbon steel with high strength and hardness, corrosion and rust resistance, smooth surface without burrs, not easy to break or deform, durable for use.
Countersunk Head Phillipe Design: The thread of black metric phillipe flat head screws bolts is clear and accurate, not easy to deform and shift during use, and not easy to loosen. Hex nuts provide a more precise fit, reduce stress and protect parts and screws.
Easy to Store: All countersunk flat head machine screws are stored in a transparent and sturdy storage box with compartments. Screw and nut set is stored separately, well organized, easy to carry and find. There is no confusion during transportation and it is convenient to use.
Multi-scenario Application: Suitable for home, office equipment industry, electronics industry, communication industry, machinery, maintenance, aircraft, ships, bicycles, motorcycles, automobiles, chemicals, and other fields.
Package Includes: 380pcs in total, size includes: 40 pcs m3*4mm, 40 pcs m3*6mm, 30 pcs m3*8mm, 30 pcs m3*10mm, 30 pcs m3*12mm, 30 pcs m3*16mm, 30 pcs m3* 20mm, 150 pcs nuts, the quantity is sufficient and the size is rich to meet the needs of daily use.

Rank No. #6

iexcell 100 Pcs M3 x 4mm Thread Pitch 0.5 mm Stainless Steel 304 Hex Socket Button Head Cap Screws Bolts Kit

✔ Includes 100 Pcs M3 x 4mm Hex Socket Button Head Cap Screws , Thread Size ( Diameter ): 3 mm, Thread Pitch: 0.5 mm, Thread Length: 4 mm, Total Length ( Includes Head ): 5.53 mm, Screw Head Style: Button Head, Head Diameter: 5.50 mm, Head Height: 1.53 mm, Screw Drive Style: Hex Socket Drive, also Known as Internal Hex Drive, Hex Size: 2.0 mm
✔ Material of Screws: Stainless steel 304, High Strength and Anti-corrosion in Various Conditions
✔ 1 Pcs Hex Key, Hex Size: 2.0 mm, to Drive These Screws Conveniently and Easily
✔ Material of Hex Key: Chrome-Vanadium Steel, Nickel Plated, Higher Strength, Anti-rust
✔ Package: 100 Pcs M3 x 4mm Hex Socket Button Head Cap Screws and 1 Pcs Hex Key Come In Plastic Storage Case, Organized Conveniently and Easily

Rank No. #7

HELIFOUNER 560 Pieces M3 x 4mm /6mm /8mm /10mm /12mm /16mm /20mm, Hex Socket Head Cap Screws Bolts Washers Nuts Kit, 12.9 Grade Alloy Steel, Full Threaded, Black

【Sizes】M3 x 4mm /6mm /8mm /10mm /12mm /16mm /20mm hex socket head cap screws with matching hex nuts, lock washers and flat washers, total 7 sizes, different sizes can meet your different needs.
【Material】Made of high quality 12.9 grade alloy steel and the surface is treated with black oxide, high hardness, no deformation, anti-oxidation, wear resistance, corrosion resistance, which can ensure long time using.
【Package】560 pieces in total, packed in a durable transparent box with label. It is easy to distinguish the size of the product, when you want to use a certain screw, you don't have to waste time buying it separately, you can choose the suitable one to meet all your needs.
【Wide Applications】Widely used in all kinds of precision machinery industry, classified instruments, instruments, electronic products, printed projects, household appliances, communication products, locks, lamps, lights, toys, etc.
【Tips】Products contain small parts, keep away from children and prevent inadvertent swallowed. All screws are special sharp with screw thread, please keep away from kids. Whenever you need us, please free to contact us, we will give you a professional service and reply you within 24 hours.

Rank No. #8

MroMax 50Pcs M3 x 4mm Flat Set Screw, 304 Stainless Steel Internal Hex Allen Head Drive Cup Point Set Screws Silver Socket Grub Screws for Towel Rack Door Knob

【Size】Model: M3 x 4mm; Screw Total Length: 4mm/0.16"; Inner Hex Diameter: 1.5mm/0.06"; Pitch: 0.5mm/0.02"; Inner Hex Depth: 1.2mm/0.05".
【Material】Hexagon socket set screws are made of 304 stainless steel for better corrosion and rust resistance, with smooth threads, fine workmanship and durability.
【Easy To Use】With clean cut edges and fine threads, these set screws for bathroom fixtures and door handles are burr-free, not prone to loosening, which can be easily screwed in with the wrench provided, making them easy and convenient for all to use.
【Wide Application】Set screws are widely used in mechanical equipment, civilian hardware, and compact instruments, such as gear fixing, cam fixing, household door handles, hardware faucets, towel racks, etc.
【Package Content】50Pcs x Set Screw

SaleRank No. #9

Kadrick 1250 Pcs M3 Screws and Nuts Assortment M3x4MM-35MM, Hex Socket Head Cap Metric M3 Machine Bolts Kit, 12.9 Grade Alloy Steel,Anti-Rust Up Graded,Black Zinc Plated,Free Allen Head Wrench

【Suitable for small DIY projects】 These small screws and nuts are especially suitable for 3D printing DIY and RC car enthusiasts.
【Not oily and rust proof】 These black zink plated finish screws are not oily, they will not dirty your hands or DIY items, and the rust proof performance is better than other oiled screws.
【Good Storage and assortment】All These Screws are Packed In a Sturdy Easy-use Plastic Storage Box, Organized Conveniently and Easily.
【Easy to operate and strong】 Hex socket head cap screws can be screwed into the nut directly by hand without a wrench, Grade 12.9 alloy steel screws are ultra-high strength and not easy to break.
【Brand guarantee】: Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.

Rank No. #10

M3x4, M3x4 Screw, Hex Screw, (15Pcs)

[Package contains]: 15 x fixing screw
·"[Product size]: Thread Size： M3x4 | Thread Type: 24 Coarse Thread (UNC) | Screw Length: 3/16 inch or 5mm (measured from under the head) | Thread Style: Right Hand | Thread Coverage: Full Thread | Quantity: 15 pcs"
·[Fine Workmanship]: Hex Socket Cap design ,can easily be driven by Allen key wrenches,All the grub screws with coarse threads, It exerts compressive force or clamping force through the bottom tip protruding from the hole..Clear and neat threads ,of these screws make it more aesthetic and ensure uniform force. and the fastening effect is better.Standard hexagon for easy installation, so it can greatly save your time even though install by hand.
·[Durable Material]: made of 304 stainless steel set screw kit, with excellent anti-rust and corrosion resistance property, and won’t slip out easily. No burr, Work Well. Tough enough to survive severe job-sites in high temperature, freezing weather and humidity, Very Durable.
·[Wide Applications]: Fully threaded headless screws , suitable for mechanical applications. such as faucets repairing, door handles Installing, Installation of lamps, pipes fixing, etc.

Last update on 2025-05-26 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best M3X4 Screws?

Do you get stressed out thinking about shopping for a great M3X4 Screws? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching M3X4 Screws, which is why we have assembled a comprehensive list of the greatest M3X4 Screws available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for M3X4 Screws that you consider buying. Your questions might include the following:

Is it worth buying an M3X4 Screws?
What benefits are there with buying an M3X4 Screws?
What factors deserve consideration when shopping for an effective M3X4 Screws?
Why is it crucial to invest in any M3X4 Screws, much less the best one?
Which M3X4 Screws are good in the current market?
Where can you find information like this about M3X4 Screws?

We’re convinced that you likely have far more questions than just these regarding M3X4 Screws, 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 M3X4 Screws, 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 M3X4 Screws. Make sure that you are only using trustworthy and credible websites and sources.

We provide an M3X4 Screws 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 M3X4 Screws 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:

Brand Value: Every brand of M3X4 Screws 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.
Features: What bells and whistles matter for an M3X4 Screws?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your M3X4 Screws.
Customer Ratings: Number ratings grade M3X4 Screws objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their M3X4 Screws.
Product Quality: You don’t always get what you pay for with an M3X4 Screws, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an M3X4 Screws is should be an indication of how long it will work out for you.

We always remember that maintaining M3X4 Screws information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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The Best M3X4 Screws of 2022 – Reviewed and Top Rated

How Do You Buy The Best M3X4 Screws?

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