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5 Best Machine Screws of 2025

Last Updated - 2025/07/22

1
Best Choice

✖
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.

AETTL

AETTL 900pcs M6 M5 M4 M3 Nuts and Bolts Assortment Kit, Stainless Steel Metric Assorted Machine Screws Set Phillips Drive Pan Head with Flat Washers

AETTL

CA$34.81

More Details
Main highlights
- Workmanship & Material: The thread is very clear and sturdy, made of high quality 304 stainless steel, good performance of rust and corrosion resistance.
- Wide Application: Widely used in bicycle, furniture, car license plate, automobile, electrical connections and other places of indoor or outdoor.
- Various Size: Includes M3 M4 M5 M6 8mm 12mm 16mm 20mm bolts assortment.
- Quantity: Contains 900pcs nuts and bolts washers.
- Package: Be packed in a sturdy convenient case which can be used for a storage organized box.
CA$34.81
2

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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.

Besitu

Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing

Besitu

CA$29.99

More Details
Main highlights
- 【Wide Applications】This screw bolt and nut kit has everything you need to screw anything together, from furniture to electronics. They will get the job done for 3D prints and laser cut items no sweat. Also Must have for robot builders, allowing for precise jig setup and product centering.
- 【Time & Money Saver】Great bins for storage with a size chart on the inside and outside. Compared to the time it takes to go to a hardware store and the cost of buying single metric screws, this machine screw assortment is a time and money saver.
- 【Organized Package Box】With a total of 1600 pieces, this M3 screw kit offers a sufficient quantity of screws nuts washers to support multiple projects. The organized packaging makes it easy to locate and access the specific m3 screws you require, saving you time and improving efficiency during work.
- 【Hex Socket Button & Cap Head】280pcs M3 x 5/6/8/10/12/16/20/25/30mm hex socket head cap screws, 250pcs M3 x 6/8/10/12/16/20/25/30/35mm hex socket button head screws, 535pcs M3 nuts and 535pcs flat washers, 1600 pieces in total. Perfect size for assembling 3d printed items.
- 【12.9 Alloy and Zinc Plated】The m3 metric screw is made of 12.9 grade alloy steel, and zinc coated are designed for no corrosion with no oil face. All screws are machined very cleanly and have a quality finish on them.
CA$29.99
3
Best Value
40% 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.

Besitu
40% Off

1705 Pcs Machine Screw Assortment Kit, M2 M3 M4 M5 Metric Bolts and Nuts Kit with Lock and Flat Washers, Hex Button Head 10.9 Alloy Steel Cap Screw Set with Allen Wrench

Besitu

CA$28.99

CA$48.99
(40% Off)

More Details
Main highlights
- 【TIME & MONEY SAVER】The screws are machined well and they have been organized into handy separate compartments. Included on the cover is a chart which directs you to the compartment and size of the hardware you're looking for. Compared to the time it takes to go to a hardware store and the cost of buying single screws, this screw set is a time and money saver.
- 【REUSABLE CONTAINER】Everything is sorted in separate compartments that are labeled, which is nice when you're looking for a specific size. You can also reuse the plastic container after you've used all the screw bolt kit.
- 【HEX BUTTON HEAD & METRIC SIZES】16 most common selections of hex button head screws, and metric size nuts, screws and washers M2-M5 with allen wrenches. This large selection of small to large nuts and bolts also comes in a hardy case for easy orgnization and identification.
- 【HANDY NECESSITY KIT】The nuts thread on the machine screws perfectly, and all the common screw sizes is typically needed for a regular household and professional mechanic, widely used in small fixtures around the house and garage, 3d prints and rc car parts. This metric screw assortment is a great option for various DIYer needs.
- 【 ALLOY STEEL MACHINE SCREWS】1705Pcs well-engineered machine screw assortment with sixteen different sizes/lengths of bolts. They are alloy steel, good black coating, no burrs, perfect fit among screws, nuts, lock & flat washers.
CA$28.99
CA$48.99 (40% Off)
4
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.

Senyard
18% Off

815pcs Machine Screws Assortment Kit,#6-32#8-32#10-24 Phillips Pan Head nut and Bolt Assortment Kit (with Lock&Flat washers・Wrenches) Stainless Steel Screw Bolt nut washers Assortment kit with case

Senyard

CA$26.88

CA$32.99
(18% Off)

More Details
Main highlights
- 【Stainless steel bolts - 2-year warranty】Our products have undergone several quality checks and many tests and come with a 2-year warranty! If you need assistance, please contact us by email or Q&A. Money back or exchange. Accept Customization.Satisfaction guaranteed.
- 【Nuts and bolts kit - High quality】Made of high quality 304 Stainless Steel, This product has passed the international stainless steel inspection.No rust for 50+ years，Passivated Surface，reinforced rust resistance, please feel free to use it in humid and high temperature environments.
- 【Machine screws - Wide Application】 Widely used in bicycle, furniture, car license plate, automobile, electrical connections on the power source of household and commercial appliances, and other places of indoor or outdoor.
- 【Machine screw assortment kit】If you have a set that can handle household screws. Contains 815 pcs machine screws bolts, nuts and lock&flat washers，stainless steel screws m4*10mm、m4*20mm. Includes #6-32 #8-32 #10-24 machine screw assortment kit with case.
- 【Assorted bolt - Package】1. Screw sorting box Wrop in bubble film; 2. Then wrap into a special screw outer box; 3. Put it into the Amazon packaging box; 4. Three layers of protection, so that the exquisite products can be delivered to your hands intact.
CA$26.88
CA$32.99 (18% Off)
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.

WiliThghe

WiliThghe 1900PCS M2 M3 M4 M5 Metric Screw Combination, Hex Nut Metric Bolt and Nut Combination Kit, Metric Nut and Bolt Flat Washer and Lock Washer Kit, with 4 Hex Wrenches, Grade 12.9 Alloy Steel

WiliThghe

CA$29.99

More Details
Main highlights
- The widely used metric screw kit can be applied to various precision mechanical instruments, electrical and electronic products, household appliances, communication products, DIY, door locks, toys, other electrical appliances, car maintenance, and bicycle racks.
- The 1900 piece screw set includes M2 M3 M4 M5 hexagonal socket head bolts, screws, nuts, and washers. This screw set also includes M2/M3/M4/M5 hex wrenches.
- Our screw varieties are stored in a sturdy storage box, which keeps the screws neat and easy to access. The compact design makes them easy to store in your toolbox, garage, or workshop, and also provides them with the best storage system.
- Easy to identify labels: The shell is labeled with the size, type, and quantity of screws, making our classification more efficient and time-saving. Therefore, it is easy for you to find the screws you need without having to sort them in a messy pile.
- Alloy steel nuts and bolts, washers - metric hexagonal cap set made of high-quality 12.9 grade alloy steel, galvanized design, corrosion-resistant, oil-free surface. Provide corrosion and wear resistance, toughness, and super hardness for screws and nuts.
CA$29.99

5 Best Machine Screws of 2025

AETTL 900pcs M6 M5 M4 M3 Nuts and Bolts Assortment Kit, Stainless Steel Metric Assorted Machine Screws Set Phillips Drive Pan Head with Flat Washers

Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing

1705 Pcs Machine Screw Assortment Kit, M2 M3 M4 M5 Metric Bolts and Nuts Kit with Lock and Flat Washers, Hex Button Head 10.9 Alloy Steel Cap Screw Set with Allen Wrench

815pcs Machine Screws Assortment Kit,#6-32#8-32#10-24 Phillips Pan Head nut and Bolt Assortment Kit (with Lock&Flat washers・Wrenches) Stainless Steel Screw Bolt nut washers Assortment kit with case

WiliThghe 1900PCS M2 M3 M4 M5 Metric Screw Combination, Hex Nut Metric Bolt and Nut Combination Kit, Metric Nut and Bolt Flat Washer and Lock Washer Kit, with 4 Hex Wrenches, Grade 12.9 Alloy Steel

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