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5 Best Machine Screws of 2026

Last Updated - 2026/04/03

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.

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
2

✖
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.

NINDEJIN

NINDEJIN 304 Stainless Steel Phillips Pan Head Machine Screws Assortment Kit - 721pcs, M3 M4 M5 Machine Screw Assorted Cross Round Head Screw Bolts Nuts Flat Washers Set - 18 Size

NINDEJIN

CA$29.97

More Details
Main highlights
- You Will Get - 721pcs Machine Screws Assortment Kit. The Kit included 18 kinds of screws: 20pcs M3 x 6mm; 20pcs M3 x 10mm; 20pcs M3 x 14mm; 20pcs M3 x 16mm; 20pcs M3 x 20mm; 20pcs M3 x 25mm; 10pcs M4 x 6mm; 10pcs M4 x 10mm; 10pcs M4 x 14mm; 10pcs M4 x 16mm; 10pcs M4 x 20mm; 10pcs M4 x 25mm; 10pcs M5 x 6mm; 10pcs M5 x 10; 10pcs M5 x 14mm; 10pcs M5 x 16mm; 10pcs M5 x 20mm; 10pcs M5 x 25mm; 3 kinds of nuts: 120pcs M3 nuts, 60pcs M4 nuts, 60pcs M5 nuts; 3 kinds of washers: 120pcs M3 washers, 60pcs M4 washers, 60pcs M5 washers; 1pcs screwdriver bit. Total of 721pcs, Ideal for both home and professional use, it's a handy gift for DIY enthusiasts.
- Wide Applications - Our comprehensive kit includes screws, nuts, and washers in popular sizes for machinery, furniture, automotive repair, electronics, and DIY projects. Perfect for both household and professional use, it's a versatile gift for DIY enthusiasts.
- Machine Screw Nuts and Washers Set - Each screw features a Phillips pan head design, allowing for easy installation and a flush finish. The kit also includes matching nuts and flat washers, providing all the necessary components for a complete assembly.
- M3 M4 M5 Machine Screws Assortment Kit - This kit includes M3, M4, and M5 machine screw. All M3 M4 M5 cross pan head machine screws and bolts and nuts comes in a durable plastic storage case for easy organization and transportation. Compared to the time spent going to the hardware store, our perfect 3 in 1 machine screw kit can save you time and money.
- 721 Premium Material Machine Screws - NINDEJIN assorted Phililips pan head screw nuts bolts and flat washers are made of 304 stainless steel. Experience long-lasting durability with our mixed machine screws, nuts, and flat washers.
CA$29.97
3
41% Off

✖
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
41% 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
(41% 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 (41% Off)
4
Best Value
43% Off

✖
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
43% Off

Besitu 720Pcs Machine Screw Assortment Kit, 10-24#8-32#6-32#4-40 Phillips Pan Head Assorted Nuts Bolts and Flat Washers Kit, Stainless Steel Screws Hardware Assortment with Case

Besitu

CA$26.99

CA$46.99
(43% Off)

More Details
Main highlights
- 【WIDE APPLICATIONS】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 various household and garage uses. The machine screw assortment kit is also a perfect gift for DIYer.
- 【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 stainless screws, this assorted bolts and nuts kit is a time and money saver.
- 【STAINLESS STEEL MACHINE SCREWS】720Pcs assorted nuts bolts and flat washers are made of stainless steel 304, high-strength hardware with decent corrosion resistance. Perfect for general uses, even use it below the water line.
- 【PHILLIPS DRIVE & SAE SIZES】16 most common selections of phillips drive stainless screws, and #4, #6, #8 & #10 in useful lengths with matching nuts and washers. Coarse threaded and SAE measurement are perfect for homeowner, mechanic and fixer to keep on hand for projects or repairs.
CA$26.99
CA$46.99 (43% Off)
5
19% Off

✖
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
19% 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
(19% 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 (19% Off)

5 Best Machine Screws of 2026

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

NINDEJIN 304 Stainless Steel Phillips Pan Head Machine Screws Assortment Kit - 721pcs, M3 M4 M5 Machine Screw Assorted Cross Round Head Screw Bolts Nuts Flat Washers Set - 18 Size

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 720Pcs Machine Screw Assortment Kit, 10-24#8-32#6-32#4-40 Phillips Pan Head Assorted Nuts Bolts and Flat Washers Kit, Stainless Steel Screws Hardware Assortment with Case

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

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