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Best socket head screws - May 2026

Last Updated - May 18, 2026

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.

Taiss

Taiss 3670PCS Metric Screw Assortment M2 M3 M4 M5 33 Sizes Button & Socket Head Screws,Hex Bolts and Nuts Kit Flat/Lock Washer, Metric Bolts and Nuts Assortment with Handheld Box

Taiss

$39.99

More Details
Main highlights
- Widely used in:Metric Bolt kit are widely used in furniture, machinery, home, DIY projects, motorcycle and automobile maintenance, and other indoor/outdoor places.
- Product packaging:These Metric Screw and nuts assortment are all put in a Handheld box with bolt size labels on it. Convenient for users to use and carry.
- Product name:Grade 12.9 M2/M3/M4/M5 Metric Bolt Assortment Kit(With exquisite portable box, it is easy to store, carry and use.Can be used as a storage box.)This metric bolt and nut kit comes in 33 sizes.A total of 3670PCS.
- Product material:Nut and Bolt Assortment Kit is made of 12.9 Grade Alloy Steel,Fully Threaded,high hardness, firmness, corrosion resistance, good wear resistance and long service life.
- Metric Screw size:Socket Head Screws：M2x4/6/10/12mm; M3x6/8/12/16/20mm; M4x8/12/16/20mm; M5x12/16/20/30mm.Button Head Screws：M2 M3 M4 M5x8/12/16/20mm;M2 M3 M4 M5 Nut/ Flat washer/ lock washer.
$39.99
2
Best Value
21% 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
21% Off

Besitu 1760pcs M2 M3 M4 M5 Metric Screw Assortment, Grade 12.9 Alloy Steel Hex Socket Head Cap Bolts and Nuts Kit, Black Zinc Plated and Anti Rust Screw Set with 4 pcs Hex Wrenches

Besitu

$25.99

$32.99
(21% Off)

More Details
Main highlights
- 【WIDE APPLICAITONS】Good assortment to have on hand for 3D printing DIY, RC hobbies, furniture, car repair and bike stand etc. 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 metric screws, this metric screw assortment 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 metric bolt and nut set.
- 【1760PCS METRIC SCREW ASSORTMENT】4 sizes of metric screws M2 M3 M4 M5. M2 screws: bolt length: 4mm, 6mm, 10mm, 12mm. M3 screws: bolt length: 6mm, 8mm, 12mm, 16mm. M4 screws: bolt length: 8mm, 12mm, 16mm, 20mm. M5 screws: bolt length: 12mm, 16mm, 20mm, 25mm, meet our all demands. 4 pcs customized hex wrenches for each size are provided in the kit to make the screws easier to use.
- 【12.9 ALLOY AND ZINC PLATED】The hardware is made of 12.9 grade alloy steel and zinc coated are designed for no corrosion with no oil face. Threads are clean and well cut. Nut fit snugly without excess movement. Washers are correctly sized for engagement.
$25.99
$32.99 (21% Off)
3

✖
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.

Fgruh

Fgruh 1760PCS Metric Screw Assortment Kit,M2 M3 M4 M5 Screws Set, Hex Socket Head Cap Bolts Nuts and Washers Kit for 3D Printing DIY, Grade 12.9 Alloy Steel, Black Zinc Plated

Fgruh

$21.99

More Details
Main highlights
- 【Wide Applications】Keep a set of commonly used Fgruh metric hardware assortment at hand. Whether you are working on DIY projects, bicycle repairs, or professional construction, it can meet your needs at any time, making your work more convenient and efficient.
- 【Premium 12.9 Grade Alloy Steel】- This machine screw assortment kit are crafted from high-strength 12.9 grade alloy steel, ensuring exceptional durability and load-bearing capacity. High-strength steel resists wear, corrosion, and heavy loads, ideal for harsh environments.
- 【Perfect for DIY Projects】 This hex socket head screw assorted kit are ideal for hobbyists working with 3D printing, electronics, RC models, DIY repairs, chair replacement and CNC machinery, offering precision for intricate designs.
- 【Organized Storage Box 】- The M2 M3 M4 M5 allen head screws set comes in a compartmentalized case with clear labels for quick access to bolts, washers, and nuts. Keeps your workspace tidy and speeds up project progress, making every job smoother.
- 【4 Sizes Metric Screw Set】This 1760pcs screws kit includes M2-0.4, M3-0.5, M4-0.7, M5-0.8 sizes with precise thread diameters (2mm/3mm/4mm/5mm) and Lenths of the bolts M3x6mm/8mm/10mm/12mm, M4x8mm/10mm/16mm/20mm, M5x10mm/16mm/20mm/30mm, M6x16mm/25mm/35mm. According with standardized metric system. And the average error is less than 0.01mm.
$21.99
4

✖
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.

Fgruh

Fgruh 1220PCS M3 M4 M5 M6 Metric Screws Assortment Kit,Hex Socket Head Cap Bolts Nuts and Washers Assorted Kit,304 Stainless Steel Hardware Set for DIY, 3D Printer

Fgruh

$21.99

More Details
Main highlights
- 【Wide Applications】Keep a set of commonly used Fgruh metric hardware assortment at hand. Whether you are working on DIY projects, bicycle repairs, or professional construction, it can meet your needs at any time, making your work more convenient and efficient.
- 【Perfect for DIY Projects】 This hex socket head screw assorted kit are ideal for hobbyists working with 3D printing, electronics, RC models, DIY repairs, chair replacement and CNC machinery, offering precision for intricate designs.
- 【Organized Storage Box 】- The M3 M4 M5 M6 allen head screws set comes in a compartmentalized case with clear labels for quick access to bolts, washers, and nuts. Keeps your workspace tidy and speeds up project progress, making every job smoother.
- 【4 Sizes Metric Screw Set】This 1220pcs screws kit includes M3, M4, M5,M6 sizes with precise thread diameters (3mm/4mm/5mm/6mm) and Lenths of the bolts M3-0.5x6mm/8mm/10mm/12mm, M4-0.7x8mm/10mm/16mm/20mm, M5-0.8x10mm/16mm/20mm/30mm, M6-1.0x16mm/25mm/35mm. According with standardized metric system. And the average error is less than 0.01mm.
- 【304 Stainless Steel Material 】 This metric cap head bolts,nuts and washers assortment kit are made of high-quality 304 stainless steel, which resist corrosion and rust, with smooth threads and high hardness for secure fastening, heavy-load capacity, and long-term use in all conditions.
$21.99
5

✖
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.

Kadrick

Kadrick Metric Screw Assortment, 2000PCS Metric Bolt Assortment Kit M2 M3 M4 M5 Machine Screws with Lock & Flat Washers, Grade 10.9 Alloy Steel Hex Socket Button Head Black Screws Nuts and Bolts Kit

Kadrick

$18.99

More Details
Main highlights
- 【WIDE SIZE COVERAGE – MOST COMMON SIZES IN ONE KIT】 Covers the most frequently used metric sizes: M2 (4/8/12/16mm), M3 (6/8/12/16mm), M4 & M5 (8/12/16/20mm) with standard ISO/DIN threads. One complete kit eliminates repeated purchases and ensures you always have the right size on hand.
- 【SMALL PRECISION SCREWS – IDEAL FOR 3D PRINTING & DIY】 Includes M2 / M3 / M4 / M5 metric screws, specially designed for 3D printing, electronics repair, RC models, and precision DIY projects. ⚠️ These are small-size screws, NOT suitable for heavy-duty or large mechanical use. Please check sizes carefully before purchasing.
- 【MOST FREQUENTLY USED SIZES FOR 3D PRINTING & DIY】 This kit includes M2, M3, M4, and M5 — the most commonly used metric screw sizes for 3D printing, robotics, RC models, and precision DIY projects. With a balanced 1:1 ratio of screws, nuts, washers, and lock washers, it provides a complete fastening solution for a wide range of assembly needs.
- 【CLEARLY ORGANIZED BOX + SIZE LABELS + INCLUDED WRENCHES】 All parts are stored in a durable, compartmentalized case with clear, easy-to-read labels for quick identification. Includes M2–M5 hex keys (Allen wrenches), making installation faster and more convenient right out of the box.
- 【10.9 GRADE ALLOY STEEL – DURABLE & PRECISE THREADS】 Made from high-strength 10.9 grade alloy steel, featuring clean threads, excellent durability, and reliable fastening performance. Backed by Kadrick’s strict quality control and a 24-month warranty for worry-free use.
$18.99

Best socket head screws - May 2026

Taiss 3670PCS Metric Screw Assortment M2 M3 M4 M5 33 Sizes Button & Socket Head Screws,Hex Bolts and Nuts Kit Flat/Lock Washer, Metric Bolts and Nuts Assortment with Handheld Box

Besitu 1760pcs M2 M3 M4 M5 Metric Screw Assortment, Grade 12.9 Alloy Steel Hex Socket Head Cap Bolts and Nuts Kit, Black Zinc Plated and Anti Rust Screw Set with 4 pcs Hex Wrenches

Fgruh 1760PCS Metric Screw Assortment Kit,M2 M3 M4 M5 Screws Set, Hex Socket Head Cap Bolts Nuts and Washers Kit for 3D Printing DIY, Grade 12.9 Alloy Steel, Black Zinc Plated

Fgruh 1220PCS M3 M4 M5 M6 Metric Screws Assortment Kit,Hex Socket Head Cap Bolts Nuts and Washers Assorted Kit,304 Stainless Steel Hardware Set for DIY, 3D Printer

Kadrick Metric Screw Assortment, 2000PCS Metric Bolt Assortment Kit M2 M3 M4 M5 Machine Screws with Lock & Flat Washers, Grade 10.9 Alloy Steel Hex Socket Button Head Black Screws Nuts and Bolts Kit

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