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5 Best Socket Cap Screws of 2026

Last Updated - 2026/08/25

1
Best Choice
14% 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.

NINDEJIN
14% Off

NINDEJIN 880Pcs Hex Socket Head Cap Screw Bolts and Nuts Set, M2 M3 M4 M5 Metric Machine Screws, Laptop Socket Cap Screw Nuts and Bolts and Washers Assortment Kit +Hex Key (304 Stainless Steel Screws)

NINDEJIN

CA$34.22

CA$40.00
(14% Off)

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Main highlights
- What you get: 880Pcs M2 M3 M4 M5 screws, nuts and washers + 4pcs allen key. Whenever you need us , please contact us by email or Q&A, we will give you a Professional Service and reply you within 24 hours.
- Standard Metric: Our screws and nuts set accord with standardized metric system. The screws kit included M2 M3 M4 M5 machine screw bolts, nuts and wahsers. It provides you with 16 size metric screws.C
- Long-term Storage: All of Screws and Nuts are packed in a durable and sturdy Box to efficiently bear the weight of the whole package.
- High Quality: The kit is made of high quality 304 stainless steel, which features is strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas.
- Broad Application: M2 M3 M4 M5 Hex Socket Head Screws Washers and Nuts Assortment Kit Serves a wide range of use and for professionals, amateurs, landlords, repairmen, other DIY.
CA$34.22
CA$40.00 (14% Off)
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.

HPGJLEE

1280 Pieces M3 Screws Metric Stainless Steel 304 Hex Socket Head Cap Screws Bolts Nuts Washers Assortment Kit

HPGJLEE

CA$33.99

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Main highlights
- Top Quality Material: Constructed with Stainless Steel 304, ensuring durability and resistance to corrosion.
- Precision Design: Hexagonal head style and M3 thread size provide easy installation and secure fastening.
- Extensive Quantity: Pack includes 1280 vis M3 screws, perfect for large-scale projects.
CA$33.99
3
Best Value
38% 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
38% Off

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

Besitu

CA$28.99

CA$46.99
(38% Off)

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Main highlights
- 【WIDE APPLICATIONS】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.
CA$28.99
CA$46.99 (38% Off)
4

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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

SENYARD 890pcs M6 M5 M4 M3 Nuts and Bolts Assortment Kit, Metric Screw Assortment（with Lock&Flat washers・Wrenches・Self Tapping Screws）304 Stainless Steel Hex Socket Head Cap Screws Assortment Set Kit

Senyard

CA$29.99

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Main highlights
- 【Metric screws - 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.
- 【Metric bolt kit - 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.
- 【Metric Screw Assortment】If you have a set that can handle household screws. Contains 890 pcs metric screws/bolts, nuts and lock&flat washers，4*10mm & 4*20mm self tapping screws. Includes 8mm 12mm 16mm 20mm M3 M4 M5 M6 metric bolts assortment.
- 【Metric Bolts and Nuts Kit - 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.
- 【Bolts and nuts 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.
CA$29.99
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.

Kalote

Kalote 780Pcs M3 Metric Screws, 12.9 Alloy Steel Hex Bolts Washers Kit

Kalote

CA$16.88

More Details
Main highlights
- 【Widely Used】---This M3 screws are used for a variety of DIY projects such as 3D printers, TV and projector installations, motorbike repairs, furniture repairs, etc., a perfect addition to any home or workshop. Just one set of kalote M3 screws set can meet your various repair and installation needs in your life.
- 【High Quality Materials】--- M3 metric screws are made of high quality 12.9 grade alloy steel with black zinc plating on the surface, high hardness, corrosion and oxidation resistance, suitable for long-term use. High quality material M3 screws assortment can perfectly meet the fastening needs of 3D printers, home and workshop in a variety of use scenarios.
- 【Exquisite Storage Box】--- To prevent you from receiving a broken box, we have reinforced and upgraded the box. The storage box has multiple grids, each size is placed in a separate grid for you to store and carry. At the same time, each grid is marked with a size label, so you can quickly find the size you need.
- 【Exquisite M3 Screw Combination Kit】---This M3 Screws Nuts Washers Assortment has 780PCS, including: Screws in 6 lengths: 6mm (60pcs), 8mm (60pcs), 10mm (40pcs), 12mm (40pcs), 16mm (30pcs), 20mm (30pcs). 260pcs M3 nuts, 260pcs M3 washers and 1pc allen wrench. Karote M3 Screw set is suitable as a useful gift for your family and friends.
- 【Best Service】--- Kalote 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 1-YEAR WARRANTY and 30 DAYS RETURN GUARANTEE, If you have any questions, please feel free to contact us.
CA$16.88

5 Best Socket Cap Screws of 2026

NINDEJIN 880Pcs Hex Socket Head Cap Screw Bolts and Nuts Set, M2 M3 M4 M5 Metric Machine Screws, Laptop Socket Cap Screw Nuts and Bolts and Washers Assortment Kit +Hex Key (304 Stainless Steel Screws)

1280 Pieces M3 Screws Metric Stainless Steel 304 Hex Socket Head Cap Screws Bolts Nuts Washers Assortment Kit

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

SENYARD 890pcs M6 M5 M4 M3 Nuts and Bolts Assortment Kit, Metric Screw Assortment（with Lock&Flat washers・Wrenches・Self Tapping Screws）304 Stainless Steel Hex Socket Head Cap Screws Assortment Set Kit

Kalote 780Pcs M3 Metric Screws, 12.9 Alloy Steel Hex Bolts Washers Kit

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